My 17 months son has always had slightly sensitive skin, but in the last month he has got big round red sores on face that then blister, inflamed and itchy. It is really upsetting, especially when other kids point at him. He is going to a dermatologist next week. I just need a bit of feedback on people who have taken their children to dermatologists and have had positive results Also what do the specialists normally do, can they just tell from looking?