My dog won't stop itching, even with current Trifexis. What can I do?
Updated On September 23rd, 2025
Pet's info: Dog | Mixed Breed | Male | neutered | 8 years and 11 months old | 21 lbs
My dog keeps itching and yes he is on trifexis that is current
3 Answers
Most Helpful Answer
Published on June 4th, 2019
Pets can itch for many reasons. Trifexis is generally a very good product so fleas are unlikely though you can certainly check him with a flea comb. Pets can develop dry skin or allergies which can all cause itching. I recommend to have Buster examined by his veterinarian to start figuring out the cause and to get medication to help stop the itching. You can try adding in an omega 3 fatty acid supplement for dogs, this can help improve the skin health. You may also try changing his diet to something like Royal Canin or Nutro as they are aimed at skin health. I hope this helps.
1Pet Parents found this answer helpful
Related Answers from Veterinarians
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Published on August 30th, 2017
That is a great start! I would consider trying a different flea medication if it doesn't clear up soon and consider treating your house with Flea Busters powder. At his age I would also consider a thyroid panel and/or prescription medications if it does not resolve with what you are currently doing. I hope this helps!
1Pet Parents found this answer helpful
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Published on September 6th, 2018
It can take some time for the fleas to completely die off. You might talk to your vet about a round of Apoquel or prednisone to help with the itching until the fleas are completely gone. Benadryl won't really help in this situation. You could also try an oatmeal pet shampoo.
1Pet Parents found this answer helpful
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