Fever could be due to infection
in body. Do you have any other symptoms other than fever?
Diclofenac is a nonsteroidal anti-inflammatory drug used to treat pain and inflammatory diseases such as gout and Paracetamol
is a medicine used to treat pain and fever
. It is typically used for mild to moderate pain
relief. They are helpful in bringing down the fever
but will not help in its cure. The cause might be a infection.
Visit some doctor and get the right diagnosis and correct medication.