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It sounds like she is having a pretty classic allergic reaction and needs more doses of benadryl. How much does the dog weigh? Ill calculate a dose for you. Alternatively, she may also benefit from a low dose of a steroid to reduce her inflammation and suppress the allergic reaction. If 3 or 4 doses of Benadryl are not helping her, then you should take her to your regular vet for evaluation as she may need a steroid in addition to the benadryl. Also , it may be more than an allergic reaction so if it is not resolving by Monday, She should be examined by her vet.
By the way, I love pitties!!! they are my favorite breed and I have a blue nose myself.
You can also feed her a bland diet. This consists of a lean protein source (boiled skinless chicken breast, low fat turkey breast boiled low fat hamburger, or low fat collage cheese) and rice or plain pasta (no butter or salt!!! that will make her feel worse). Feed this in a 1:2 ratio of protein to carbohydrate and start with a few table spoons every few hours, then work up to a normal meal at her normal feeding times if she tolerates this without vomiting. Withhold food for 4-6 hours before offering her anything and offer water first. If she does ok with this, then you can offer her food.
I am always in favor of probiotics. They are never harmful and may even be helping her. You can continue to give them indefinitely.
She can have 50 milligrams of Benadryl (up to 100mg but this will make her pretty sleepy) three times a day until the rash and hives are gone.
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