Can anyone advise, my son has caught chicken pox from his older sister and has it much worse. His temp was up to 39.3 at 6 so I gave calpol, I've been checking it since and it's now 38.6 (that's what it was when I checked at 7pm) so it's not coming down any further. Should I worry about this? I don't want to give him neurofen because it says not to for chicken pox and I've heard horror stories about secondary infections etc. So what should I do about his temp not really moving down or if it goes back up before the next dose of calpol is due? My daughter only had a slight fever and it went right down with calpol so this is worrying me. Thanks in advance.