Drink raw, unfiltered apple cider vinegar mixed with water.
Read everything you can about acidosis. Baking soda reverses acidosis. Follow instructions on the label of the box, always on an empty stomach. I take it at night before I go to bed and in the morning before meals. I chase it down with a glass of water. You only need to do this for maybe 2 or 3 days. 80% of diet should be fruits and vegetables which are alkaline forming. Meats, eggs and milk are acid forming. Apple cider vinegar is alkaline forming. Read my message about my cure for sinusitis.
Reversing the acidosis is key. Acidosis causes swelling, inflammation and mucus. My love and prayers to you.