Hello, I recently visited a doctor for headache and he had advised me tablets - diclomol, mucinac and taxim - o. I do have sinus problem but I don't know if this problem that im having currently is due to sinus or not. I have a head ache is very constantly there every moment since the last 4 days and recently like a week back I had quit smoking too. I do not have any pain near my lips,  upper eyelids or near the nose which is normal during issues ! The problem is only with the headache which is constantly there. What should be done ?