Hello, my name is Dr.Dorina Gurabardhi. I understand your concern.
Treatment of postnasal drip depends on what’s causing it. Antibiotics can clear up a bacterial infection. However, green or yellow mucus is not proof of a bacterial infection.
Colds can also turn the mucus these colors, and they are caused by viruses, which don't respond to antibiotics.
Some advices that I can give to you are :
-Use antihistamines and decongestants
-Use
steroid nasal spray
-Take a medication such as
guaifenesin (
Mucinex).
-Use saline nasal sprays or irrigation, like a neti pot, to flush mucus, bacteria, allergens, and other irritating things out of the
sinuses.
-Turn on a vaporizer or humidifier to increase the moisture in the air.
Hope my answer was helpful, if you have any other questions I'll be glad to help, thanks!