Dog Scratching From Fleas Graphic | Diamond CARE

Flea Allergy Dermatitis: A Single Bite Is All It Takes

Flea allergy dermatitis is the most common skin condition in dogs and a common cause of scratching and itching. But with flea control and prevention strategies in place, it doesn’t have to be the only thing on your dog’s mind.

Genetics Play a Role in Flea Allergy Dermatitis

The first thing to know about flea allergy dermatitis (FAD) is that it doesn’t affect all dogs. Only dogs genetically predisposed to FAD will develop symptoms when they are exposed to allergens in flea saliva. Other dogs will show no allergic reaction and will have just the usual itching associated with flea bites.

There are three antigens in flea saliva that trigger an immune system response, and in some dogs, that includes the production of antibodies. One of the antigens in flea saliva is a major allergen that produces an abnormally powerful response to something that the immune system would otherwise consider harmless. If your dog has environmental allergies, they are more likely to be allergic to fleas as well.

And dogs don’t have to be flea-infested to develop FAD; just one bite from one flea is all that’s needed. This makes a flea avoidance strategy critically important for dogs with FAD.

What Does FAD Look Like?

If your dog is itching and scratching above and beyond a “normal” scratching session, they may need to be checked for FAD. Dogs with FAD often have reactions along the back half of the body – from the middle of the back to the base of the tail and down the hindlegs. The intense itching caused by FAD can often mean dogs are missing hair in this area. In severe or untreated cases of FAD, the itching and inflammation may cause skin damage or open sores. This can lead to secondary bacterial and/or fungal infections, which leads to more scratching, gnawing and licking.

Diagnosing FAD Often Starts with Preventing It

If your veterinarian suspects FAD, often the first thing they will do is check for evidence of fleas. They may or may not find fleas and may find only flea dirt. Intradermal allergy tests similar to those done on people or specialized blood tests can confirm FAD. However, often a diagnosis is best confirmed by seeing a positive response to strict flea control.

Stop the Fleas, Stop the FAD

In some cases, dogs with FAD may need treatment to soothe their irritated skin and treat secondary infections. However, the best way to prevent and treat FAD is to remove the cause — fleas. If your dog has FAD, you should eliminate adult fleas from your dog and remove immature flea stages from your dog’s environment. Only 5 percent of fleas are adults at any given stage, the remainder are eggs, larvae (maggot-like stage) and pupae (cocoon stage). So it’s important to treat your dog, the inside of your house and possibly your yard and garden.

And remember that if one pet in the household has fleas, all pets must be treated with a flea control product to completely remove the flea infestation. It can take 3 or more months to completely rid a home of fleas.

Some vets recommend year-round flea control for dogs with FAD, even if there are no visible signs of fleas. There are numerous types of flea control products available, so talk to your veterinarian about which one may work well for your dog.

A Change in Diet May Help Skin Allergies

The food you feed your dog can positively or negatively affect your dog’s skin health and immune system. Dogs with flea allergy dermatitis or environmental allergies may benefit from food designed for sensitive skin. Ask your veterinarian if your dog could benefit from a sensitive skin formula.

 

A single flea bite can mean non-stop itching and scratching for dogs with flea allergy dermatitis. But eliminate the fleas and you eliminate the flea allergy dermatitis.

 

RELATED POST: Scratching at the Surface of Canine Skin Allergies

The information in this blog has been developed with our veterinarian and is designed to help educate pet parents. If you have questions or concerns about your pet's health or nutrition, please talk with your veterinarian.

Search

  • Where to Buy Diamond Pet Food Near Me
    [gravityform id="22" ajax="true"]
    <div class='gf_browser_unknown gform_wrapper gravity-theme scoop-form_wrapper' id='gform_wrapper_22' style='display:none'><div id='gf_22' class='gform_anchor' tabindex='-1'></div> <div class='gform_heading'> <h2 class="gform_title">The Scoop Newsletter</h2> <span class='gform_description'></span> <p class='gform_required_legend'>&quot;<span class="gfield_required gfield_required_asterisk">*</span>&quot; indicates required fields</p> </div><form method='post' enctype='multipart/form-data' target='gform_ajax_frame_22' id='gform_22' class='scoop-form' action='/blog/health/flea-tick/flea-allergy-dermatitis-a-single-bite-is-all-it-takes/#gf_22' > <div class='gform_body gform-body'><div id='gform_fields_22' class='gform_fields top_label form_sublabel_below description_below'><div id="field_22_8" class="gfield gfield--width-full gfield_html gfield_html_formatted gfield_no_follows_desc field_sublabel_below field_description_below gfield_visibility_visible" data-js-reload="field_22_8"><p class="sign-up-text">Sign up to receive email communications, including our <span style="white-space:nowrap;">e-newsletter</span>, The Scoop, where you can be the first to know about social contests, new blog posts and more!</p></div><fieldset id="field_22_1" class="gfield field_sublabel_above field_description_below hidden_label gfield_visibility_visible" data-js-reload="field_22_1"><legend class='gfield_label gfield_label_before_complex' >Name</legend><div class='ginput_complex ginput_container no_prefix has_first_name no_middle_name has_last_name no_suffix gf_name_has_2 ginput_container_name' id='input_22_1'> <span id='input_22_1_3_container' class='name_first' > <label for='input_22_1_3' >First Name</label> <input type='text' name='input_1.3' id='input_22_1_3' value='' aria-required='false' /> </span> <span id='input_22_1_6_container' class='name_last' > <label for='input_22_1_6' >Last Name</label> <input type='text' name='input_1.6' id='input_22_1_6' value='' aria-required='false' /> </span> </div></fieldset></fieldset><div id="field_22_2" class="gfield gfield--width-full gfield_contains_required field_sublabel_below field_description_below gfield_visibility_visible" data-js-reload="field_22_2"><label class='gfield_label' for='input_22_2' >Email<span class="gfield_required"><span class="gfield_required gfield_required_asterisk"> * <span class='sr-only'> Required</span></span></span></label><div class='ginput_container ginput_container_email'> <input name='input_2' id='input_22_2' type='text' value='' class='large' placeholder='EMAIL ADDRESS' aria-required="true" aria-invalid="false" /> </div></div><fieldset id="field_22_3" class="gfield gfield--width-full pet-parent-radio gfield_contains_required field_sublabel_below field_description_above gfield_visibility_visible" data-js-reload="field_22_3"><legend class='gfield_label' >PROUD PARENT OF A<span class="gfield_required"><span class="gfield_required gfield_required_asterisk"> * <span class='sr-only'> Required</span></span></span></legend><div class='ginput_container ginput_container_radio'><div class='gfield_radio' id='input_22_3'> <div class='gchoice gchoice_22_3_0'> <input class='gfield-choice-input' name='input_3' type='radio' value='DOG' id='choice_22_3_0' onchange='gformToggleRadioOther( this )' /> <label for='choice_22_3_0' id='label_22_3_0'>DOG</label> </div> <div class='gchoice gchoice_22_3_1'> <input class='gfield-choice-input' name='input_3' type='radio' value='CAT' id='choice_22_3_1' onchange='gformToggleRadioOther( this )' /> <label for='choice_22_3_1' id='label_22_3_1'>CAT</label> </div> <div class='gchoice gchoice_22_3_2'> <input class='gfield-choice-input' name='input_3' type='radio' value='BOTH' id='choice_22_3_2' onchange='gformToggleRadioOther( this )' /> <label for='choice_22_3_2' id='label_22_3_2'>BOTH</label> </div></div></div></fieldset></fieldset><div id="field_22_7" class="gfield gfield--width-full gfield_html gfield_html_formatted gfield_no_follows_desc field_sublabel_below field_description_below gfield_visibility_visible" data-js-reload="field_22_7"><button class="dropdown-toggle" type="button" id="puppy-drop" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">DO YOU HAVE A PUPPY?*</button></div><fieldset id="field_22_6" class="gfield gfield--width-full scoop-puppy-radios gfield_contains_required field_sublabel_below field_description_above gfield_visibility_visible" data-js-reload="field_22_6"><legend class='gfield_label' >Do you have a Puppy?<span class="gfield_required"><span class="gfield_required gfield_required_asterisk"> * <span class='sr-only'> Required</span></span></span></legend><div class='gfield_description' id='gfield_description_22_6'>*By answering "Yes" to this question, you agree to receive the <i>Puppy Love</i> email series</div><div class='ginput_container ginput_container_radio'><div class='gfield_radio' id='input_22_6'> <div class='gchoice gchoice_22_6_0'> <input class='gfield-choice-input' name='input_6' type='radio' value='NO' id='choice_22_6_0' onchange='gformToggleRadioOther( this )' aria-describedby="gfield_description_22_6" /> <label for='choice_22_6_0' id='label_22_6_0'>NO</label> </div> <div class='gchoice gchoice_22_6_1'> <input class='gfield-choice-input' name='input_6' type='radio' value='Yes - 1 month old (or younger)' id='choice_22_6_1' onchange='gformToggleRadioOther( this )' /> <label for='choice_22_6_1' id='label_22_6_1'>Yes, they're 1 month old</label> </div> <div class='gchoice gchoice_22_6_2'> <input class='gfield-choice-input' name='input_6' type='radio' value='Yes - 2 months old' id='choice_22_6_2' onchange='gformToggleRadioOther( this )' /> <label for='choice_22_6_2' id='label_22_6_2'>Yes, they're 2 months old</label> </div> <div class='gchoice gchoice_22_6_3'> <input class='gfield-choice-input' name='input_6' type='radio' value='Yes - 3 months old' id='choice_22_6_3' onchange='gformToggleRadioOther( this )' /> <label for='choice_22_6_3' id='label_22_6_3'>Yes, they're 3 months old</label> </div> <div class='gchoice gchoice_22_6_4'> <input class='gfield-choice-input' name='input_6' type='radio' value='Yes - 4 months old' id='choice_22_6_4' onchange='gformToggleRadioOther( this )' /> <label for='choice_22_6_4' id='label_22_6_4'>Yes, they're 4 months old</label> </div> <div class='gchoice gchoice_22_6_5'> <input class='gfield-choice-input' name='input_6' type='radio' value='Yes - 5 months old' id='choice_22_6_5' onchange='gformToggleRadioOther( this )' /> <label for='choice_22_6_5' id='label_22_6_5'>Yes, they're 5 months old</label> </div> <div class='gchoice gchoice_22_6_6'> <input class='gfield-choice-input' name='input_6' type='radio' value='Yes - 6 months old' id='choice_22_6_6' onchange='gformToggleRadioOther( this )' /> <label for='choice_22_6_6' id='label_22_6_6'>Yes, they're 6 months old</label> </div> <div class='gchoice gchoice_22_6_7'> <input class='gfield-choice-input' name='input_6' type='radio' value='Yes - 7 months old' id='choice_22_6_7' onchange='gformToggleRadioOther( this )' /> <label for='choice_22_6_7' id='label_22_6_7'>Yes, they're 7 months old</label> </div> <div class='gchoice gchoice_22_6_8'> <input class='gfield-choice-input' name='input_6' type='radio' value='Yes - 8 months old' id='choice_22_6_8' onchange='gformToggleRadioOther( this )' /> <label for='choice_22_6_8' id='label_22_6_8'>Yes, they're 8 months old</label> </div> <div class='gchoice gchoice_22_6_9'> <input class='gfield-choice-input' name='input_6' type='radio' value='Yes - 9 months old' id='choice_22_6_9' onchange='gformToggleRadioOther( this )' /> <label for='choice_22_6_9' id='label_22_6_9'>Yes, they're 9 months old</label> </div> <div class='gchoice gchoice_22_6_10'> <input class='gfield-choice-input' name='input_6' type='radio' value='Yes - 10 months old' id='choice_22_6_10' onchange='gformToggleRadioOther( this )' /> <label for='choice_22_6_10' id='label_22_6_10'>Yes, they're 10 months old</label> </div> <div class='gchoice gchoice_22_6_11'> <input class='gfield-choice-input' name='input_6' type='radio' value='Yes - 11 months old' id='choice_22_6_11' onchange='gformToggleRadioOther( this )' /> <label for='choice_22_6_11' id='label_22_6_11'>Yes, they're 11 months old</label> </div> <div class='gchoice gchoice_22_6_12'> <input class='gfield-choice-input' name='input_6' type='radio' value='Yes - 12 months old' id='choice_22_6_12' onchange='gformToggleRadioOther( this )' /> <label for='choice_22_6_12' id='label_22_6_12'>Yes, they're 12 months old</label> </div></div></div></fieldset></fieldset><fieldset id="field_22_9" class="gfield gfield--width-full field_sublabel_below field_description_below hidden_label gfield_visibility_hidden" data-js-reload="field_22_9"><div class='admin-hidden-markup'><i class='gform-icon gform-icon--hidden'></i><span>Hidden</span></div><legend class='gfield_label gfield_label_before_complex' >Newsletter Subscribe</legend><div class='ginput_container ginput_container_checkbox'><div class='gfield_checkbox' id='input_22_9'><div class='gchoice gchoice_22_9_1'> <input class='gfield-choice-input' name='input_9.1' type='checkbox' value='Company Newsletters, Contests &amp; More' checked='checked' id='choice_22_9_1' /> <label for='choice_22_9_1' id='label_22_9_1'>Company Newsletters, Contests & More</label> </div><div class='gchoice gchoice_22_9_2'> <input class='gfield-choice-input' name='input_9.2' type='checkbox' value='Puppy Love for your pup&#039;s first year?' checked='checked' id='choice_22_9_2' /> <label for='choice_22_9_2' id='label_22_9_2'>Puppy Love for your pup's first year?</label> </div></div></div></fieldset></fieldset><div id="field_22_10" class="gfield gfield--width-full field_sublabel_below field_description_below hidden_label gfield_visibility_hidden" data-js-reload="field_22_10"><div class='admin-hidden-markup'><i class='gform-icon gform-icon--hidden'></i><span>Hidden</span></div><label class='gfield_label' for='input_22_10' >No Puppy subscribe</label><div class='ginput_container ginput_container_text'><input name='input_10' id='input_22_10' type='text' value='Company Newsletters, Contests &amp; More' class='large' aria-invalid="false" /> </div></div><div id="field_22_11" class="gfield gfield--width-full gform_hidden field_sublabel_below field_description_below gfield_visibility_visible" data-js-reload="field_22_11"><div class='ginput_container ginput_container_text'><input name='input_11' id='input_22_11' type='hidden' class='gform_hidden' aria-invalid="false" value='The Scoop PopUp' /></div></div></div></div> <div class='gform_footer top_label'> <input type="submit" id="gform_submit_button_22" class="gform_button button om-trigger-conversion scoop-pupout-submit-btn" value="I WANT THE SCOOP!" onclick='if(window["gf_submitting_22"]){return false;} window["gf_submitting_22"]=true; ' onkeypress='if( event.keyCode == 13 ){ if(window["gf_submitting_22"]){return false;} window["gf_submitting_22"]=true; jQuery("#gform_22").trigger("submit",[true]); }'> <input type='hidden' name='gform_ajax' value='form_id=22&amp;title=1&amp;description=1&amp;tabindex=0' /> <input type='hidden' class='gform_hidden' name='is_submit_22' value='1' /> <input type='hidden' class='gform_hidden' name='gform_submit' value='22' /> <input type='hidden' class='gform_hidden' name='gform_unique_id' value='' /> <input type='hidden' class='gform_hidden' name='state_22' value='WyJbXSIsIjVmNTUxNjllZWEyZDg2NzZiODNmOTc4MzE4MjAxOTg5Il0=' /> <input type='hidden' class='gform_hidden' name='gform_target_page_number_22' id='gform_target_page_number_22' value='0' /> <input type='hidden' class='gform_hidden' name='gform_source_page_number_22' id='gform_source_page_number_22' value='1' /> <input type='hidden' name='gform_field_values' value='' /> </div> </form> </div> <iframe style='display:none;width:0px;height:0px;' src='about:blank' name='gform_ajax_frame_22' id='gform_ajax_frame_22' title='This iframe contains the logic required to handle Ajax powered Gravity Forms.'></iframe> <script type="text/javascript"> gform.initializeOnLoaded( function() {gformInitSpinner( 22, 'https://www.diamondpet.com/wp-content/plugins/gravityforms/images/spinner.svg' );jQuery('#gform_ajax_frame_22').on('load',function(){var contents = jQuery(this).contents().find('*').html();var is_postback = contents.indexOf('GF_AJAX_POSTBACK') >= 0;if(!is_postback){return;}var form_content = jQuery(this).contents().find('#gform_wrapper_22');var is_confirmation = jQuery(this).contents().find('#gform_confirmation_wrapper_22').length > 0;var is_redirect = contents.indexOf('gformRedirect(){') >= 0;var is_form = form_content.length > 0 && ! is_redirect && ! is_confirmation;var mt = parseInt(jQuery('html').css('margin-top'), 10) + parseInt(jQuery('body').css('margin-top'), 10) + 100;if(is_form){jQuery('#gform_wrapper_22').html(form_content.html());if(form_content.hasClass('gform_validation_error')){jQuery('#gform_wrapper_22').addClass('gform_validation_error');} else {jQuery('#gform_wrapper_22').removeClass('gform_validation_error');}setTimeout( function() { /* delay the scroll by 50 milliseconds to fix a bug in chrome */ jQuery(document).scrollTop(jQuery('#gform_wrapper_22').offset().top - mt); }, 50 );if(window['gformInitDatepicker']) {gformInitDatepicker();}if(window['gformInitPriceFields']) {gformInitPriceFields();}var current_page = jQuery('#gform_source_page_number_22').val();gformInitSpinner( 22, 'https://www.diamondpet.com/wp-content/plugins/gravityforms/images/spinner.svg' );jQuery(document).trigger('gform_page_loaded', [22, current_page]);window['gf_submitting_22'] = false;}else if(!is_redirect){var confirmation_content = jQuery(this).contents().find('.GF_AJAX_POSTBACK').html();if(!confirmation_content){confirmation_content = contents;}setTimeout(function(){jQuery('#gform_wrapper_22').replaceWith(confirmation_content);jQuery(document).scrollTop(jQuery('#gf_22').offset().top - mt);jQuery(document).trigger('gform_confirmation_loaded', [22]);window['gf_submitting_22'] = false;wp.a11y.speak(jQuery('#gform_confirmation_message_22').text());}, 50);}else{jQuery('#gform_22').append(contents);if(window['gformRedirect']) {gformRedirect();}}jQuery(document).trigger('gform_post_render', [22, current_page]);} );} ); </script>