I have been sick for almost three weeks with stuffy nose, headache, and couching. I figured it was just a sinus infection, but now my neck is really sore and my gland is swollen on my left side. My throat doesnt hurt inside its just the outside. What could it be?
Thanks for posting you query to Chat Doctor. It is clearly indicated infection with some microorganism it could be Viral or Bacterial. As Upper respiratory tract infection are commonly caused by viruses and secondarily infected with bacteria so dual infection may be there and it involved your neck gland also. So first you should be investigated for :1.complete blood count to see level of infection. 2.X-Ray Paranasal sinuses to find out which sinus is involved and level of involvement. Presently you can take:1 tablet Aceclophenac 100 mg orally after meal two times a day for relieving headache.2. Syrup containing Ambrose with Cetirizine three times a day for cough.3. Oxymetazoline 0.05% nasal Chat Doctor. Medication should be taken under supervision of clinician. Hope you would be satisfied with my answer.  Feel free to communicate if any query.regards,