My dog has patchy hair loss. What are the causes and remedies?

I would have this checked by a vet. It sounds very much like ringworm. Although the name suggests otherwise, ringworm is not caused by a worm at all-but a fungus. This highly contagious infection can lead to patchy areas of hair loss on a pet, and can spread to other animals-and to humans, too. Classic symptoms of ringworm include lesions that typically appear on a pet’s head, ears, paws and forelimbs. These lesions can cause patchy, crusted circular “bald spots” that sometimes look red in the center. In mild cases of ringworm, there may be just a few broken hairs, while bad cases of ringworm can spread over most of a pet’s body. It’s also possible for a pet to carry the fungus and not show any symptoms whatsoever. Treatment of ringworm depends on the severity of the infection. A veterinarian may prescribe a medicated shampoo or ointment that contains miconazole or a dip such as lime sulfur to kill the fungus. In some cases, oral medications are necessary to cure ringworm. In severe cases, it may be necessary to use a topical and oral treatment, in addition to clipping away the fur. Once treatment begins, lesions should begin to heal in about one to three weeks. Please note, it is important to treat your pet for as long as recommended by your veterinarian. Even though the skin lesions may have cleared up, this doesn’t mean your pet is cured or can’t infect another animal or person. Certain diagnostic tests may need to be repeated in order to ensure cure. And unfortunately, there is no guarantee that reinfection won’t occur!

This may be due to parasites (fleas, mites), infection (bacterial or fungal) or allergies. Lucero would need to be physically examined by your veterinarian to diagnose the underlying cause. This may take diagnostics such as skin scrapes, cultures, allergy testing or food elimination trials. In the meantime, place an e-collar (cone) on him to prevent licking or chewing. Treat him for fleas, even if you don't see any, using a topical or oral preventative. Treat monthly for 3 consecutive months, preferably year round. Treat the environment as well by vacuuming everywhere and washing all bedding. An area treatment, such as Knockout ES or Indorex, should also be used. If Lucero has allergies, they can be frustrating to diagnose. Discuss allergy testing, hydrolyzed diets, food elimination trials and antihistamine use with your veterinarian.

Those spots on Tank could be several things including allergies, skin mites, flea bites, ringworm (which humans can get), endocrine disease or a bacterial infection. You can try adding in an omega 3 fatty acid supplement for dogs, this can help improve the skin health. You may also try changing his diet to something like Royal Canin or Nutro as they are aimed at skin health. You can wash the lesions with a medicated dog shampoo every other day and rinse well. Protect the areas from licking or scratching. If they don't start looking better within about a week or if they get worse, have him examined by his veterinarian who may prescribe medications or diagnostics. Best of luck and please feel free to post any additional questions.

Skin problems can have a variety of causes, sometimes more than one. Allergies, parasites, bacterial or fungal infections, even contact with some surfaces or substances will cause itching, rash and/or hair loss. It is important to have the problem checked by your vet to determine if there is a medical cause for your pet’s skin issues and treat accordingly. In pets of all ages, fleas, food allergies and exposure to chemical irritants such as cleaners and soaps can be a cause. Any one of these may not be enough to trigger the breakouts, depending on how sensitive your pet is, but a combination can be enough to start the itch-scratch cycle. Finding out the cause and eliminating it is the best course of action. With flea allergies, if your pet is sensitive enough, a single bite can cause them to break out scratch enough to tear their skin. Check for fleas with a flea comb. Look for fleas and/or tiny black granules, like coarse black pepper. This is flea feces, consisting of digested, dried blood. You may find tiny white particles, like salt, which are the flea eggs. Applying a good topical monthly flea treatment and aggressively treating your house and yard will help break the flea life cycle. If you use plastic bowls, this is a possible cause for hair loss, though this tends to be on the chin, where their skin touches the bowl while they eat. If you suspect this to be the culprit, try changing the bowls to glass, metal or ceramic. Food allergies are often caused by sensitivity to a protein in the food. Hill's Science Diet offers some non-prescription options for sensitive skin as well as prescription hypoallergenic foods for more severe cases. Royal Canin carries limited protein diets that may also offer some relief. Your vet can recommend a specific diet that will help. If there is no relief or not enough, consider getting your pet checked by a veterinary dermatologist and having allergy testing done.

Those spots on Max could be several things including fleas, allergies, skin mites, bacterial infection or ringworm (which humans can get). There are a couple things you can do at home and they can help but they may not address the underlying cause. You can try adding in an omega 3 fatty acid supplement for dogs, this can help improve the skin health. You may also try changing his diet to something like Royal Canin or Nutro as they are aimed at skin health. You can wash the lesions once a day (not his whole body, just the lesions). Also protect the area from trauma by having your pup wear an elizabethan collar at all times. If the lesions do not start improving within a week or if they are getting worse, have him examined by the veterinarian. You will need to speak with a local veterinarian for medications. I hope this helps and please feel free to post any additional questions.

The redness and hairloss on Charlie could be several things including allergies, skin mites, flea bites, ringworm (which humans can get) or a bacterial infection. You can try adding in an omega 3 fatty acid supplement for dogs, this can help improve the skin health. You may also try changing his diet to something like Royal Canin or Nutro as they are aimed at skin health. You can wash the lesions with soap once a day and rinse well (don't wash his whole body, just those spots). Protect the areas from licking or scratching. If they don't start looking better within about a week or if they get worse, have him examined by his veterinarian who may prescribe medications. Best of luck and please feel free to post any additional questions.

Lesions like this could be several things including allergies, skin mites, ringworm (which humans can get) or endocrine disease. You can try adding in an omega 3 fatty acid supplement for dogs, this can help improve the skin health. You may also try changing his diet to something like Royal Canin or Nutro as they are aimed at skin health. Protect the areas from licking or scratching and he may need to wear an Elizabethan collar at all times. If the lesions don't start looking better within about a week or if they get worse, have him examined by the veterinarian who may prescribe medications or recommend some bloodwork. Best of luck and please feel free to post any additional questions.