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Dog itchy skin & diarrhea. Allergy meds failed. Should I change food?

Updated on September 23rd, 2025

Pet's info: Dog | Labrador Retriever | Female | spayed | 1 year and 10 months old | 26 lbs

My dogs been suffering with itchy skin already resulting in two vet trips and now has had on off diarrhoea for the last couple of days.... research I've done suggested an allergy and ive been trying piriteze hayfever tablets the last three days but no improvement yet .... do I change her food (dry biscuits wainwrights) which is allergenic free or keep going with the piriteze for a couple more days ? She's been on this food for about 3months with no previous problems ....

1 Answer

Most Helpful Answer

Jeffrey Milner

Answered By Jeffrey Milner

Veterinarian

Published on July 19th, 2017

Hi, sorry to hear Luna is having this problem. If she has allergies that are not responding to allergy medication, she may need some tests to determine what is the cause of her allergy. IF can be environmental, or it can be food. If it is food, you can get a prescription hypoallergenic diet from your vet. Labradors are prone to allergies and it may be more than one thing setting her off. Since allergy medication is supposed to work soon and not last long, i would call your vet and ask for a different recommendation for allergy tablets. I see the main ingredients in the food you are feeding is lamb. It may be your dog is allergic to lamb, and you can try another meat based food like duck or venison. But if she has been fine on the food for 3 months, the food is not likely the cause. Can she possibly have gotten some other kind of food? Did anyone give her a tablet scrap or treat? That could have set off an allergic reaction. In this case, you just have to wait until it leaves her system and use an antihistamine. I would try a different antihistamine with a different main ingredient. Your vet can guide you to a product available in your area. Good luck with Luna! I hope this helps!
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