My curling iron slipped and burned the left side of my cheek several week's ago. Not the first time this has happened when I try to curl my hair and talk on the phone at the same time. Previously the burn disappears in 2-3 weeks; this time the skin hasn't healed and the area has turned brown, lightly raised. I treated the burn with polysporin. It would take at least 4 months for me to get an appointment with a Dermatologist -- so any suggestions would be appreciated.