A red area above your dog's nose can be a cause for concern, and it often stems from a few common issues. These include trauma, mange (specifically from Demodex mites), or various skin diseases. If your dog has experienced a recent injury to that area, a simple cleaning may suffice. If mites are the culprit, anti-mite treatment is necessary. For skin diseases, topical medications or other treatments as prescribed by a veterinarian are usually required.
Frequently, redness above a dog's nose is caused by an external injury, Demodectic mange, or other skin conditions. If your dog has recently bumped or scraped their nose, proper daily disinfection by you can promote healing. If Demodex mites are identified on the skin above the nose, using an anti-mite medication will likely resolve the issue. When bacterial or fungal infections affect the skin in this area, redness and inflammation can also occur. If you suspect an infection, a trip to your veterinarian for skin sampling and appropriate medication is crucial.
Why is the bridge of my dog's nose red and sometimes ulcerated? It may also be due to fungal skin conditions, such as Microsporum canis infections. These can cause increased flaking, itching, and skin sores caused by the dog scratching. An anti-fungal spray would help with that. Fungal skin infections can be contagious, so consider shaving your dog’s fur to better inspect other parts of the body for infections, and isolate your dog. It's also helpful to use an Elizabethan collar to prevent your dog from scratching the affected area. Including supplements like lecithin and unsaturated fatty acids can also help improve skin resistance.
Skin ulceration and redness due to trauma generally heal within a couple of weeks. Fungal skin diseases, on the other hand, are more stubborn and require more time to treat with consistent medication. Remember to take precautions when dealing with fungal conditions, as these can be transmitted to humans.