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Dr. Dym's Ask a Vet Blog
Dr. Dym provides a vet's perspective on all types of pet health issues.

Adverse Reactions to Flea & Tick Preventatives

Just like humans, both dogs and cats can have an adverse reaction to a topical flea and tick preventative. Below is a list of symptoms of an adverse reaction to flea and tick preventatives, and what you should do for your pet.

What are the symptoms of an adverse reaction?

  • Skin redness
  • Irritation
  • Constant scratching of the skin
  • Licking of the skin

While side effects are uncommon, if you find your pet suffering from one of these symptoms, follow the steps below. Note: If your pet is experiencing a severe adverse reaction such as shaking, nausea or seizures, go to your local urgent pet care facility or to your vet's office immediately.



What can you do for your pet?

  • First discontinue use of the flea and tick preventative.
  • Then, wash the medication off with warm water and original Dawn dishwashing liquid.
  • Be sure not to scrub your pet's sensitive, irritated skin.
  • Soothe your pet's irritated skin naturally with cool compresses and even an oatmeal bath.


What else should you do?

  • Sometimes an adverse reaction on your pet's skin is mild and the symptoms will dissipate within 24 hours.
  • In addition, call our Customer Care Department and let us know if your pet is having an adverse reaction to a flea and tick preventative so we can be sure to inform the manufacturer.


  Max's Tip: Always make sure that your pet's skin is in optimal condition before applying any flea and tick medication. To promote healthy skin and a shiny coat, use Brite Coat XS.  

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