You can take medication called guaifenesin (Mucinex) to thin out mucus. Sometimes when mucus builds up it can cause a bacterial infection, and you'll need antibiotics to help clear it up. Does Flonase help with postnasal drip? Flonase is an OTC steroid nasal spray that treats sneezing, ...
try using medicated or saline nasal sprays. An irrigation device called a neti pot can also flush out thick mucus. A hot steam shower can also help moisten your nasal passages and relieve congestion. You can take medication called guaifenesin (Mucinex) to thin out mucus. ...