These substances, called allergens, can cause reactions as mild as itching and as severe ... an allergic reaction can look ...
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5 Common Allergies in Dogs
Symptoms include severe itching ... FAD can react to minimal flea exposure. Contact allergies, or contact dermatitis, happen ...
He was previously on this for a week about a month ago." - Russel Related: How Can I Treat My Dog's Contact Skin Allergies? Why Is My Dog's Skin Red All Over, and Why Isn’t It Getting Better?