If I had to venture a guess, I would guess that you might be overweight and diabetic (type I or II) or that your body ingests and harbors a lot of glucose/sugar, etc. From what I have experienced, MRSA seems to thrive in overweight, high glucose human bodies. If this is true or you suspect this may be true, you need to DRAMATICALLY CUT DOWN on your glucose levels - right this instant! . . . and stay off the sugar/glucose for the rest of your life, as MRSA can come back on you several times if you lose your sugar/glucose discipline. The Bactrim does not work well if it is trying to fight the MRSA while inside a high glucose environment.

Someone else mentioned colloidal silver. However, there is too much misinformation about colloidal silver out there for most people to use it wisely. From what I know about colloidal silver, the retail over the counter stuff is not very genuine or effective. You need a small, personal COLLOIDAL SILVER GENERATOR made by a scientist/engineer who knows how to create the right ratio of ions to volume and temperature of distilled water, electrical energy input per time, size and purity of silver anodes & cathodes, etc. Most people don't event know the proper generation system to use or the parts per million of colloidal silver that is the most effective in fighting many types of bacteria. Most people don't even know that colloidal silver loses it's effectiveness if it is left out in sunlight or in a clear bottle for too long. Hopefully, colloidal silver will become more accepted and more people will become aware of how to use it wisely.

That being said, you could try colloidal silver topically. I don't know about its impact on the eyeball/eye socket nor in the sinus cavity. However, if you wanted to get a bit radical, jury rig a Rube Goldberg solution by getting some duct tape or highly adhesive medical tape, a school sandwich-sized plastic Hefty plastic bag, and some 4" x 4" cotton bandage swaps. Sit all the way back in a fully reclined recliner chair, but at an angle so that a colloidal solution in your eye won't fall out back over your forehead and down your back -- in other words, repose at an incline of about 140 degrees or so.

Have your friend or life partner make a u-shaped plastic-backed bandage BUCKET for pouring the colloidal silver over your eyes/eye socket, inside of the bucket. Do it this way. Cut out a 3 1/2" x 3 1/2" square if plastic from the Hefty plastic sandwich bag - just one layer is fine. Place the plastic square on top of the 4" x 4" cotton swap. Join the plastic backing and the cotton swap together with the duct tape, but do it so that at least a 1 1/2" width of duct tape can adhere to your cheek and your temples and nose. Do this by adhering strips of duct tape to the EAST, SOUTH, and WEST edges of the 4" x 4" Hefty plastic backed cotton swap. Make two of these. One for each eye/eye socket. Apply one plastic backed cotton swap BUCKET to each eye/eye socket. While you are at a 140 degree repose, have your partner pour the colloidal silver into each bucket. Probably a shot glass amount of solution for each eye. Don't worry if stuff dribbles down your face. It's harmless. Keep it in your eye/eye socket for at least 20 to 30 minutes. Do this once every 4 hours for a total of 4 times a day.

I have swished colloidal silver as a mouthwash for 20 minutes and then spit it out. Some people I know have imbibed colloidal silver in order to get the silver into the blood stream through the digestive system. However, you then need to eat some yoghurt several hours later in order to restore beneficial bacteria to your digestive system, since the colloidal silver will downsize your beneficial bacteria levels in the process of attacking the bad bacteria.

I am not a physician and this note does NOT constitute medical advice. However, I know a fair amount about proper colloidal silver technology as well as suitable techniques for it's topical application, use as a mouthwash, and its application via ingestion.

Good luck. Lose the sugar/glucose immediately!