Why is my dog itching, losing fur, and has bloody, pus-filled sores?

Question

My 9 year old Chocolate Lab has been itching alot for the past week. 2 days ago I bathed him and I noticed chunks of fur falling out and he had sores where and there was dried pus around the sores. Today I noticed some blood around the sores. I have been putting oatmeal medicated spray and Neosporin on him but it isn't helping at all. Pet's info: Dog | Labrador Retriever | Male | neutered | 9 years and 6 months old | 70 lbs

Dr. Melanie, BVSc MS · Accepted Answer

Poor Toby! This itching could be due to fleas, mites, ringworm, or allergies. If he isn't up to date on his flea treatment, I can give you one for him. First, I would give him Capstar. It's a one time pill that starts killing fleas within 30 minutes. Then follow up with a spot on treatment, such as Advantage or Revolution. This is a treatment that has to be used once a month. You will also have to disinfect the environment. Wash his bedding in hot soapy water, and vacuum the furniture and carpet surfaces. You can use a spray to kill fleas in the house, such as Indorex, or a flea bomb would work well to kill the fleas in the home. If he is up to date on his flea treatment, I recommend taking him into the vet for an exam today or tomorrow. The vet can do blood tests, skin scrapings, and use a Wood's lamp to diagnose allergies, mites, and ringworm. Once the cause of the itching is found, the vet can prescribe the appropriate treatment. I hope this helps.

Why is my dog itching, losing fur, and has bloody, pus-filled sores?

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