Homeopathic cures for a sinus infection include placing humidifiers with clean filters in frequently used rooms, inhaling shower steam to reduce nasal swelling and congestion, and drinking plenty of fluids to thin nasal mucus, according to WebMD. Rest and nasal saline solutions also help.
It is possible to relieve sinus pressure by placing a warm, wet towel over the face. Flushing out sinuses with a salt water solution made with distilled water keeps nasal passages moist and clear of excess mucus. Nasal irrigation devices, such as bulb syringes or neti pots, must be rinsed and left to air dry after each use, according to WebMD.