A.C.
My first question, have you tried a Neti pot? They are available in health food stores or online. Get a ceramic one. It looks like a mini Alladin's lamp and you use it to rinse your sinuses with a saline solution. It will clear out the infection. It takes some getting used to, but it will change your life. No joke. I would also recommend oil of oregano capsules and cayenne capsules. Take one of each, 3x day. Oil of oregano is a very powerful natural antibiotic. Cayenne is packed with vitamin C and gets blood circulating which delivers more oxygen. Oxygen heals. Colloidal silver is also very effective. You can add it to your neti pot. There is also a nasal spray that contains colloidal silver which you can find at Whole Foods or any good health food store. I was introduced to colloidal silver many years ago when I was exactly in your situation. Could not shake the infection and had taken too many antibiotics to count. Colloidal silver is something you want to take no more than 7-10 days in one stretch.
You need to work on building up your immune system. Get on superfood, dehydrated wheatgrass, spirulina. Also found in health food store. Stay away from sugar. Nothing drags down your immune system faster. Don't fall for sugar free products. Aspartame is poison. It turns to formaldehyde when it hits 90'. Our bodies are 98.6'
Start seeing a chiropractor. When your neck is not in alignment it affects your sinuses. I started going to one because of asthma and have not used antibiotics or inhalers in years. Acupuncture is also very effective. There is a pressure point for your sinuses on the outside of your thumb, by the base of the nail. Apply slight pressure with the side of your other thumb. If it is sensitive you've hit the right spot. You might even feel it in your sinuses. Do this for 15 seconds throughout the day.
Steam. Buy Queen Helene's Mud Masque from Rite Aid. You will find it with the facial products. It is in a brown and white tube that stands on end. Apply a thick layer of it over your brow and under your eyes covering the sinus cavities. Let it dry for an hour or longer. Do this as needed. It will break up the infection and get things moving. The main ingredient in it is kaolin which is a fine white clay. It has incredible drawing powers and can be used for things like insect bites and slivers also.
If you really can't handle the neti pot, get a salt pipe. Go to the beach and breathe in salt air. It is so restorative.
http://www.natural-salt-lamps.com/saltpipe.html
You can take care of this without going under the knife. Take charge of your health.