If the burn is minor and there is no visible damage to the paw pad, it's possible that the paw pad may heal on its own within a few days to a week. However, during the healing process, it's important to keep the paw clean and dry, and to protect it from further damage. If the burn is more severe, with visible signs of blistering or peeling of the paw pad, it's important to seek veterinary attention. Your vet may prescribe medication or ointments to help promote healing and may recommend limiting your dog's activity or keeping him from walking on hard surfaces until the paw has fully healed.