My 9 year old daughter has suffered from a bad cough for 5 days. Yesterday she developed a slight fever (99.7), which was reduced with ibuprophen. This morning the cold seemed to now be in her head as well, but she had no fever. We saw her pediatrician today, and were told that she does not appear to have any infection (although the strep test results aren t in yet).Tonight she had a fever of 102.2, and seems to be very fatigued. When I put her to bed, I noticed a blue tint circling around her mouth and chin. Should I be concerned, and are these symptoms related?