What you described seems to be an exanthematous fever
....you must take care that you do not spread the disease by coming in contact with others .and consult a doctor immediately.
If not possible to see a doctor start off with Antibiotic like Amoxicillin
+clavulinic acid 625 mg three times a day,,Tab. Paracetamol
500 three times a day,,drink lots of water ,,,keep and eye on your urine output,,apply lactocalamine on the lesions,,take antiallergic like loratidine