Dermaline gel was made from dermaline and used as a treatment for first and second degree burns, such as those in injuries caused by a ruptured nitrogen line.
Doctor Phlox used dermaline gel to treat an engineer who received first degree burns when a nitrogen valve seal blew in 2151. (ENT: "Dear Doctor")
In 2372, Kes was told by The Doctor to treat a crewman's second degree burns with dermaline gel. (VOY: "Deadlock")