Labrador itching & hair loss persists. What's the underlying cause?

I would be very suspicious of mange with what you are describing. This will not be solved with antiparasite powders or antibacterials/antifungals. If you are seeing a vet doctor, then they should be able to scrape the skin and check for the mites that cause mange under a microscope. If it's a compounder or not a real vet doctor that has prescribed the treatment for Milo, then that would be the first problem. You will need to find a real vet doctor to help with this problem. With mange, they will need an injection of ivermectin or something similar once a week for many weeks (often months) until it's clear. Please look for a good small animal vet doctor and they will be able to help you with this.

This is probably due to an allergy, although it could also be infection or mites. First of all, in order to rule out skin parasites, you will need to treat with a high quality flea treatment, then ask the vet to perform a skin scrape - this might reveal an infection or a mite infestation. If all of those came back negative, the next step is to treat the allergy symptomatically and try to discover the cause of the allergy. Three main type of allergies are usually affecting pets: food allergies, flea and parasite related ones and environmental type (allergens coming from trees, pollens, dust etc etc). Some medications can be given by the vet in order to repair any possible skin lesions (like steroids and antibiotics). Hope this answer was helpful, but please do not hesitate to contact us again on the forum or by requesting a consultation if you have any more questions or to discuss it any further.

It looks as if your dog has a skin infection, most commonly caused by an allergy, a skin mite (Demodex) or fleas. 

The allergy could be a due to a protein in your dog’s food or an environmental allergy like to dust, pollens, grasses, etc. 

The allergy causes your dog to itch and chew at the skin which breaks down the skin barrier. This then leads to infection. Skin infections are typically characterized by large areas of hair loss, redness, crusting, flaking, and pustules. A thorough skin examination by your veterinarian should be able to determine the cause of the itch so it can be treated appropriately. A skin scraping and skin cytology should be performed to rule out mites and to determine the type of infection present (bacterial vs fungal). Your dog will most likely need antibiotics/antifungals longterm to help clear up the infection and possibly an allergy/anti-itch medication like Apoquel, Atopica, or Cytopoint to give some relief while the infection clears up. A medicated shampoo will be beneficial as well. I would also recommend he be on a good flea control routinely too. Once the infection has resolved a long term allergy medication (like Apoquel or Cytopoint) can be given on a regular basis to prevent any future problems. I hope this helps. Thanks for using Petco Pet Education Center, formerly Petcoach. Best of luck.


Skin can be very frustrating. The most common cause of skin irritation is allergies (food, flea or environmental). However skin mites, endocrine and auto immune disease can also cause skin issues. I would recommend applying flea prevention every 30 days year round to make sure the fleas are not an issue. Also if the skin is not resolving Kim might need medications for longer, stronger medications or more testing like a skin scrape for mites or biopsy for auto immune disease. I recommend taking Kim back tot he vet to discuss the skin not resolving and further testing. Hope that helps and thanks for using pet coach

Anytime a young dog has skin issues I would make sure to apply flea prevention every 30d ays. Also I would have your vet do a skin scrape to look for skin mites. I am not sure about India but in the united states demodex and scabies are quite common. IF she does have a skin mite the above treatment will not help the skin improve. I would recommend taking her back tot he vet for a re check. hope this helps!

It is very possible that Rylie has both demodex as well as underlying allergies. Demodex is a mite that we commonly see in young dogs, like Rylie. It is very easy to detect on skin scrape, so your vet should be able to readily tell you if she has it or not. Allergies can be a little more difficult to figure out, as they can be environmental, food related, or seasonal. If it is a diet related allergy, it could take 2 months of a new diet to see any improvement. Since she has a few pimples, I would be concerned that she may be developing a skin infection that requires antibiotics. I would take Rylie in to have an exam with your vet and a skin work up to see what the underlying cause of her hair loss is and what treatment she needs to be on.

Poor Laboo! This scratching can be caused by 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. Best of luck.