The differential diagnosis is broad. It could be from Mononucleosis
. Aspirin intake after Viral fever
cause rash(Reye's Syndrome
). Influenza with rash is rare.
The treatment involves bed rest, Paracetamol
, decongestants, antihistamines, hot liquids. It will get better over time. If the fever continues you need course antibiotics. A avoid pencillins.