New Study Shows Amoxicillin ineffective for treating sinus infections. Try this instead A study in the JAMA shows Amoxicillin which has been used to treat sinus infections does not work. An article in Scientific American discusses these new findings. Read the article here. Here is an alternative that is natural and works. Sinus infections occur when inflammation closes up the sinus passages and bacteria that thrives with a lack of oxygen begin to grow, causing the familiar headache and head pain. Use this simple regimen to relieve most cases of sinus infection naturally. 1. Tiger balm red - Found in CVS and Asian markets, tiger balm is quite pungent. Boil a cup of water in the microwave and put 1/3 tsp of tiger balm in the cup. Close your eyes and breathe in the fumes, inhale deeply. It will help relax the lungs and continue to do it until the sinuses open. This can be safely repeated over and over. 2. Once the sinuses are open, use ocean, a saline spray that can be used to wrinse the sinuses and wash away bacteria. 3. Use a nasal spray decongestant to help keep the sinuses open. The trick is to keep the sinuses open for about a day. Most infections will begin to clear once fresh air enters the sinuses. The fresh air will kill the infectious organisms that are responsible for the infection. This sounds too easy to work but it works predictably. Try it and find out for yourself.