Dd 2 has been to the dr this afternoon as she has been running a high temp since sunday night. No cough cold etc. Dr examined her and her knees were very red and one was very hot so the doctor diagnosed a skin infection which I think she said was cellulitis? She has been prescribed antibiotics which she had a dose of and some calpol and her knees are no longer red or hot! Does this happen with cellulitis, does it come and go or has she been misdiagnosed?