My allergic dog is vomiting brown liquid despite diet changes. Why?

Question

My dog has chronic environmental/ food allergies. He gets an outbreak of welts, ear infections & GI upset. Recently he had another skin outbreak. Chicken was in his food so we transitioned him over a month to a new wet/dry food. Recently he has started vomiting once in the morning, digested brown liquid/food. He has a normal appetite, energy and normal/soft poop currently. I stopped his wet food and gave rice,pumpkin,kibble,cottage cheese. It helped at first but he vomited again today. Ideas? Pet's info: Dog | Mixed Breed Large (61lb +) | Male | neutered | 6 years and 2 months old | 95 lbs

Megan, DVM, CVA · Accepted Answer

Poor Caeser! Skin allergies can be so frustrating. If you haven't already, I would consider a prescription hypoallergenic diet like hill's science diet Z/D or their limited ingredient diet or purina's HA diet. A food trial consists of 12 weeks of ONLY these food and the approved treats. If you don't want to go to the expense of these foods, you can try an OTC limited ingredient diet. My favorite is natural balance venison and sweet potato. Chicken and beef are the most common causes of food allergies. As far as the environmental allergies, I would talk to your vet about a long term medication like apoquel. This has been a game changer for a lot of my allergies patients. Finally, considering his loose stool, this could be due to the food or something else entirely. I would have your vet take a look at his stool for parasites, campylobacter and giardia. These can all cause GI problems and can be easily treated. You may also talk to your vet about whether or not Pepcid would be a good option for Caeser. If the vomiting most commonly occurs first thing in the morning before he eats, he could have a small case of acid reflux. This is usually easily fixed by giving Pepcid right before bed time. I would talk to your vet about the appropriate dose for him and whether this could be what is going on. I hope this helps!

My allergic dog is vomiting brown liquid despite diet changes. Why?

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