Why does my dog have a red spot with a divet under her nose?
Hello. While it is impossible to make any kind of actual diagnosis, a lesion like this most likely has an underlying bacterial cause. We often see isolated & well circumscribed lesions on the top of the nose or muzzle just from the fact dogs stick their noses in dirt or other nasty things all day long. Putting anything on this is not recommended because he will lick it off. You can pick up a skin antiseptic like Hibiclens from any pharmacy & just dab this on a couple of times a day. Once your vet has a chance to look, he may put Luna on oral antibiotics, or take a small sample to look at under the microscope. Other than this, there is no need to worry too much about the lesion. Take care, all the best to Luna & thanks for contacting Petco Pet Education Center, formerly Petcoach.
Updated on September 23rd, 2025