My dog's nipple is red, inflamed, and looks like a pimple. What to do?

This looks like a small pustule - like a pimple from an infected hair follicle. I suggest you use these medicated pads on that lesion 1-2 times per day. If after a few days it does not start to look better OR it looks worse, then he needs to see a vet. ( https://www.allivet.com/p-5393-douxo-chlorhexidine-3-ps-pads-for-dogs-and-cats-30.aspx?SearchTerm=duoxo%20pad+Auto )

I don't think this looks too concerning but if you are worried you should take him to your vet for an exam. If you want to try something on him at home, I would suggest you try this product. If no improvement with using this then he should definitely see your vet. ( https://www.petco.com/shop/en/petcostore/product/vetericyn-plus-hot-spot-antimicrobial-gel-for-dogs )

That looks uncomfortable. It's impossible to know at this stage if the nipple is infected or if the skin on/around the nipple is inflamed and this is causing the enlarged size. The block dots could be flea dirt, blocked pores or debris Patrick has laid in. Your best option is to have Patrick examined by the veterinarian and to get medications to help the itchiness. These lesions could be several things including fleas, allergies, skin mites, bacterial infection, ringworm (which humans can get) or endocrine disease. If you can't get him in to the veterinarian, 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. I hope this helps and please feel free to post any additional questions.

This does look like a skin rash. I would clean it with antibacterial soap and then apply a thin film of antibacterial ointment on it. It should heal in a few days to a week. Please keep her from rubbing or scratching the area. If you see more lesions then I recommend a veterinary exam and treatment. She may be developing a mild skin infection that would need oral antibiotics. Thanks for using Petco Pet Education Center, formerly Petcoach to help you care for Grace.

Congratulations on your puppy! It is difficult to tell for certain from a photo, but it looks as though Mollie could have a pustule located adjacent to her nipple and that is what you are seeing. this is a little spot of infection under the skin (like a whitehead pimple in people). This isn't uncommon in puppies (we call it puppy pyoderma) and we often treat with a medicated shampoo or topical antibiotic in mild cases. I would wash the area with a mild soap and apply a triple antibiotic ointment for now and schedule an appointment with the vet to have it looked at to be on the safe side, as I said it is impossible to say for certain from a photo if this is exactly what is going on.

Hello. The nipple is definitely red & inflamed, but this does not always indicate the presence of an infection. For now, you can rub a little 1% hydrocortisone on the skin 2-3 times a day, & if it is not looking any better by early in the week, please have your veterinarian take a look. Thank you.

It does look like a pimple/pustule. I would not be overly concerned. It may go away on it's own. I recommend you use these medicated pads on the affected area once a day until healed. It should heal faster with treatment. Hope this helps! https://worldtails.securevetsource.com/itemView/view/198944_HomeDelivery.pml?productId=117958