Why is my dog chewing, scratching, and losing hair with black crust?

Question

Massive amount of hair loss black crust always chewing and scratching black patches red sore on foot. Pet's info: Dog | Jack Russell Terrier | Male | unneutered | 10 lbs

David Elbeze, DVM, MRCVS · Accepted Answer

Scratching, chewing and hair loss can be caused by various reasons such as fleas, mites ,fungal infection, bacterial infection and allergies. the first 4 needs to be ruled out before we start treating for allergies. in order to do that first de-flea him with a high quality flea treatment such as advantage spot on, if it doesn't help - take him to the vet in order to check for/treat the other possibilities. If everything is ruled out, then an allergy treatment can be started. Usually an hypoallergenic food is a good way to start together with anti histamines. if it doesn't help - the best solution is a medication called Apoquel which treats allergies with great success and without side effects.

Why is my dog chewing, scratching, and losing hair with black crust?

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