My puppy has crusty, yellowish-green rashes. What could it be?

This is probably caused by an allergic reaction. first of all make sure you flea Java regularly every month with a high quality spot on (ex. Advantage) as fleas are by far the most common reason for these reactions. It could also be a mite infestation which can be detected by your vet taking a small sample from the skin. If the fleas or mites are not the problem, it could be an allergic reaction to food or an environmental factor. this is more complicated to treat and will sometimes require medications such as Steroids or anti histamines in order to stop the allergy.

She could be having an acute allergic reaction to something such as grass or some type of chemical on the ground. You can try washing her off using a mild cleanser such is Dawn dish soap or oatmeal-based pet shampoo. If it doesn't clear up within 8 to 12 hours then I would recommend having your veterinarian do an exam. In the meantime if you start scratching or itching at it you'll need to stop her as that could cause a secondary bacterial infection.

The area on the side of his face looks like it has a bacterial infection causing the raised bumps. Your puppy should see your veterinarian to determine if this is the case. They may also want to do a skin scraping to look for any skin mites that may have started the problem. It looks like your pup will need prescription antibiotics to resolve this problem.

It sounds 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. Your dog will most likely need antibiotics 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 may 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 would avoid putting anything on the skin until the infection is under control. I hope this helps. Thanks for using Petco Pet Education Center, formerly Petcoach. Best of luck.

This is probably caused by an allergic reaction. first of all make sure you de-flea Junior regularly every month with a high quality spot on (ex. Advantage) as fleas are by far the most common reason for these reactions. If the fleas are not the problem, it could be an allergic reaction to food or an environmental factor. this is more complicated to treat and will sometimes require medications such as Steroids, anti histamines or Apoquel in order to stop the allergy.

This is probably caused by an allergic reaction. first of all make sure you de-flea Beau regularly every month with a high quality spot on (ex. Advantage) as fleas are by far the most common reason for these reactions. If the fleas are not the problem, it could be an allergic reaction to food or an environmental factor. this is more complicated to treat and will sometimes require medications such as Steroids, anti histamines or Apoquel in order to stop the allergy.

A vet’s visit would be best to determine whether the yellow scab are from dermatitis/pyoderma which is a fairly common skin infection. A Medicated shampoo such as Malaseb (available on PetCo.com, chewy.com, 1800Petmeds) that contains chlorhexidine and ketoconazole that is anti-bacterial, anti-fungal and anti-seborrheal (will help remove greasy flakes) used to shampoo the belly 2-3 times a week for 2-3 weeks, leaving the suds on 5-10 min prior to rinsing for optimal efficacy may be helpful. (Towel dry but never use a hair dryer on a puppy to avoid burns.) An in person physical exam would still be advisable as other skin conditions such as ringworm can possibly present as yellow flakes and would likely require more than Malaseb shampoo to treat. Good luck!