Just picked my baby (DS 6mths) up from CM and he has bright red face and forehead, she thinks he has had an allergic reaction to a brand of wipes she has started using ...but my eldest has red cheeks too and said they had all been out in garden today ( surprisingly we have actually had a sunny day!)..am now starting to think its sunburn and am V angry ...is there an easy way to tell the difference, before I do lots of shouting?