leave it alone, give it a little water (spray bottle if possible - - - away from the lights)

it wants to live more than you want it to.
remember, an animal can eat a pot plant, shit the seeds, and a beautiful plant will grow. look around, some people have done some really supid things on here. one guy is even praising urinating on his plant (not hatin', holmes, just think it's weird)

take some pics and let us see what's up. if it doesn't heal in 3 or 4 days, it may be infected. keep your humidity below 50% for those 4 days.

peace