Hi, I have had nasal congestion now for about 4 weeks. It started out feeling like a cold. I was coughing, congested, runny nose. Then it turned into a sinus infection and I was on antibiotics for 10 days. After that I felt better for a few days although still not at 100%. Now I have been congested and having a headache for a couple of days. Ive tried antihistamines, decongestants, Flonase, saline spray, hot steam and nothing seems to be working. What else can I do?