hello
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 .