How can i heal a dog bite on nose?

Avoid infection: Key to healing is to avoid infection. Clean the wound daily and treat with antibiotic ointment. Once wound is closed silicone sheeting, or gel dressings will help reduce scaring. If infection developed you need to be on antibiotics to avoid cartilage involvement. Fortunately nose is well vascularized so usually heals well. If necessary follow up with plastic surgeon.