I had severe headache from last 2 year if I sleep less or under stress or in case of dust allergy along with pricky pain in the back of the ear and forehead at a time either at left side or right side and facial swelling .It last for 6 to 8 hours. Sometimes I also have nasal congestion,ear congestion and throat irritation. I strongly feel it's a sinusitis, can you please suggest any medication for this.