My 6 year old daughter threw up all night. No more throwing up for about 5 hours now, but her cheeks are bright red like she has a sunburn and she has a fever of about 100. The rash on the cheeks is strange. She does not have a rash anywhere else. Could this be scarlet fever, or 5ths disease?
HI...it can be either of one of those. She might be deny Chat Doctor.  I suggest you get a rapid streptococcal antigen test done and if it is positive, you will need an antibiotic therapy for 10 days. Skin conditions are best diagnosed only after seeing directly. I suggest you to upload photographs of the same on this website, so that I can guide you scientifically.  Hope my answer was helpful for you.  I am happy to help any time. Further clarifications and consultations on Chat Doctor are welcome. If you do not have any clarifications, you can close the discussion and rate the answer. Wish your kid good health.