Thank you for your query
It appears from your symptoms that you were suffering from a viral infection and it has persisted. Nothing works better on a draining sinus
better than steam inhalation. Although it appears clumsy, it works a lot. Similarly salt gargles for sore throat
. Additionally a nasal decongestant (oral tablets or nasal drops) will be required. For the muscle aches and pains you will need analgesics. For a proper prescription you should visit a physician.
Hope that helps
God bless you