My DS (19 months) has chicken pox. He came down with it on Sunday and although spotty has been totally well with it, no temperature, loss of appetite etc. Last night he refused his tea and was very upset and had a temp of 37.7. Gave him paracetamol and he went straight to sleep at bedtime. He's just woken now and has a temp of 38.7. I'm just a bit confused why he has suddenly developed a fever 5 days into the virus? Anyone had this with their DCs?