Why are there dandruff-like flakes and lumps around my dog's mouth?

My biggest suspicion is that these two ate something that really irritated their skin and set it up for infection. Certain house plants are a common culprit. There is not any contagious diseases that I can think of that would cause these sort of problems. The best things you can do is have them evaluated by a vet. They will be better able to find the cause of this and offer the best treatment. For now, it's good to keep the area clean with a medicated dog shampoo (you can usually get these in the pet store). Clean with cool water for five minutes, twice a day, wiping gently. With good cleaning, the infection usually clears within two weeks. I hope that helps and they get better soon.

Thanks for using Petco Pet Education Center, formerly Petcoach! This is possibly due to allergies. It really comes down to figuring out what is causing her allergies so that they can be treated or the specific allergen avoided. The lump may actually be something like a cyst. There are many things that can cause allergies though in most cases they can be broken down into 3 big categories: flea, food and environmental allergies. Allergies are usually worked up in a stepwise fashion starting with flea allergies as this is the easiest and cheapest to take care of. If not on a flea preventative, then it would be a good idea to get started on one. If already on one then it would be a good idea to change to something else (there are many new products out in the market). If not improved in 1-3 months then it is time to move on and check for food allergies by switching to a novel diet (new protein and new carbohydrate). If that does not seem to be the issue then you are left out having to check for environmental allergies which require blood and/or skin tests. Allergies can be very frustrating to deal with at first but so rewarding at the end when we are able to treat them effectively!

It's hard to tell just from the photos because many lesions will look the same despite different causes. Those spots on Mara could be several things including fleas, allergies,superficial bacterial infection or endocrine disease. There are a couple things you can do at home and they can help but they may not address the underlying cause. I do recommend to go ahead and treat for fleas just in case. 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 her diet to something like Royal Canin or Nutro as they are aimed at skin health. You can wash the lesions once a day (not her 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 her examined by the veterinarian. I hope this helps and please feel free to post any additional questions.

This is a superficial pyoderma (skin infection) but from what, I do not know. I suggest you use these medicated pads topically on the affected areas until they are gone. If after about 7-10 days there is no improvement, he should see a vet. ( https://www.amazon.co.uk/Douxo-recommended-antibacterial-antifungal-wipes/dp/B07JKTKZZG/ref=sr_1_1?keywords=duoxo&qid=1571744139&sr=8-1 )

Thanks for using Petco Pet Education Center, formerly Petcoach! This may be due to allergies for example though other possibilities like mange cannot be ruled out. It really comes down to figuring out what is causing his allergies so that they can be treated or the specific allergen avoided. There are many things that can cause allergies though in most cases they can be broken down into 3 big categories: flea, food and environmental allergies. Allergies are usually worked up in a stepwise fashion starting with flea allergies as this is the easiest and cheapest to take care of. If not on a flea preventative, then it would be a good idea to get started on one. If already on one then it would be a good idea to change to something else (there are many new products out in the market). If not improved in 1-3 months then it is time to move on and check for food allergies by switching to a novel diet (new protein and new carbohydrate). If that does not seem to be the issue then you are left out having to check for environmental allergies which require blood and/or skin tests. Allergies can be very frustrating to deal with at first but so rewarding at the end when we are able to treat them effectively!

This is dandruff (seborrhea). It could be nutrition related. It could be a product you are using on him (shampoo, spray , etc). It may just be him. I would suggest you put him on a good skin supplement, make sure he is on a good dog food and use this medicated shampoo to treat seborrhea. If no improvement after a couple months then you should have him to your vet for an exam. I like this supplement: ( https://www.allivet.com/p-1803-missing-link-vet-canine.aspx ) You can use this medicated shampoo - lather, let sit on his coat for 10 minutes and then rinse. You can bathe twice a week and once the skin is looking better you can go to once a week. In between baths you can use the spray or the mousse. ( https://www.allivet.com/p-6684-douxo-seborrhea-shampoo-for-dogs-and-cats.aspx?SearchTerm=duoxo%20seborrhea+Auto ) ( https://www.allivet.com/p-6675-douxo-seborrhea-micro-emulsion-spray-for-dogs-and-cats-68-oz.aspx?SearchTerm=duoxo%20sebor+Auto ) ( https://www.allivet.com/p-6678-douxo-seborrhea-mousse-for-dogs-and-cats-68-oz.aspx?SearchTerm=duoxo%20sebor+Auto )

This is probably caused by an allergic reaction. first of all make sure you de-flea Ace 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.