Thank for asking to HCM
I really appreciate your concern if you do have sinus infection
then such headache is just likely the medicine that are given by the doctor is okay but the pain killing medicine is not given here in my opinion this need to be given, actually I always prescribe the analgesic
for headache if there is history of sinus and the best option is "Tab Acetaminophen
with Domeperidone three time in day" hope this information helps you, have a nice day.