As an esthetician, someone who does waxing all day long, make sure you contact the salon and let them know what happened. This could have been caused by bad wax, too hot of wax or improper technique. I had a few people complain about one of the girls I manage, and by them saying something and causing me to check up on what she was doing, we discovered why it was happeneing and prevented future occurances.
Sometimes, for reasons unknown to me, it happens. Some clients are very sensitive. I can tell immediatly if I've done that. So what I make sure to do(after giving them 10% off and apologizing.) I put neosporin on it right away, reccomend they do the same, and suggest using cool water when cleansing and maybe aloe vera. Most times my clients return and say "oh, it didn't get scaly cause you told me about it, so we could keep it from getting bad."
Sorry, got OT there. But getting the neosporin on immediatly seems to keep it from getting scaly.