I have a bad sinus infection that has cut off air flow to my ear canals totally. i bent over today got a huge pop sound fallowed by pain and no sound?

Antibiotics: If you have a sinus infection and those symptoms then you would need an antibiotic, a steroid nasal spray, two days of a decongestant spray such as afrin. Mucinex (guaifenesin) is an option to thin the mucus and possibly a decongestant pill like sudafed depending on certain factors in your history such as you blood pressure and heart status. If this is repetitive then allergy skin tests are necessary.