From your description, it is quite apparent that you aid suffering from some form of a viral illness.Fever
, body aches,headache and skin rash
are all manifestations of the same.
Since the fever is now subsiding, so you should not take any medicine for the same now.
As far as the skin rash is concerned, it can either be due to the viral illness or it can be due to any medicine that you have taken.
Antibiotics and medicines taken for fever are the common offending agents.
I would advise you to see a physician soon to assess the cause of the same and get yourself investigated for dengue
Dr Geetika Paul