DS is just turned 4. He has sore/red/dry-ish skin around his mouth and I'm wondering if he needs to see a doctor or if it could be caused by him dribbling/keep licking around his mouth. He's always been a real dribbler since he was tiny and although it's not so bad now, he's quite often wet around his mouth. Would that cause it? could/should I put a barrier cream on it or see a doctor first... I want it to clear up before he starts school but not wanting to make a big deal out of it for him.