What are these new worsening target and dark red spots on my dog?

It is hard to tell for sure it if both dogs have it I would be most suspicious of black fly bites, which are often just a local irritant. However, the other big concern would be petechia hemorrhages- which could come secondary to things like rat poison exposure! If they are feeling fine and were exposed to flies recently this is more likely but if they seem to feel off or had any other signs of concern it would be safer to take them in!

Thank you for the picture of Chipper's lesion. It appears to be a black fly bite. These lesions from the bite look bad, but typically they do not bother the pet. You don't need to do anything to treat it, these usually go away on their own over time. That being said, if this doesn't improve over the next week, it looks worse, or he's constantly itching it, then he will need to see a vet. I hope this helps!

It is possible, though it looks more like it could be a bacterial infection. Ideally, take her in to the vet for an exam so that the proper treatment can be determined. If you want to try something at home, you can try this product: https://www.petco.com/shop/en/petcostore/product/vetericyn-plus-wound-and-skin-care-for-dogs However, if it is not improving within a few days, please get her in to see your vet. Thanks for asking PetCoach!

I would recommend going to the vet. Sometimes this can occur with insect bites, but it could also happen with autoimmune disease or bleeding disorders. The vet will do a thorough examination, and based on their findings and the medical history, may recommend blood work or other testing.

From the appearance in those photos, I suspect those are black fly bites. They can cause pretty dramatic round red lesions that are flat (not raised). While they look impressive, Gnocchi shouldn't be bothered by them. They will gradually go away (it can take a week or two) and are not dangerous. I hope this helps!

Most often when we see a lesion like this on the skin it is the result of an insect bite, in particular a biting fly such as a black fly. If your dog is acting normally then I would just monitor the area. If the lesion grows in size, becomes raised or oozes a discharge, or your dog develops many more lesions, becomes lethargic or very itchy a vet exam is recommended.

These are likely fly or insect bites. They should fade in the next day or two. If he begins to itch, contact your veterinarian for a dose of Benadryl (diphenhydramine). Place an e-collar (cone) on him to prevent licking. These bites are common in the Spring.