I was having a problem with a sore, red and painful throat. I tried cayenne, a strong colloidal silver spray and salt. I used these separately and jointly. I used them through gargling and with a neti pot. They helped for a part of a day, then I would feel that pain again. This is what worked for me: 2 bunches of green onions tossed into a blender with just enough water to get a pudding consistency. I would "gargle" with this 3 times a day. That means I would kind of pour it in the back of my throat, make some gargling sounds and then spit it out. It worked when all else failed. Onions are known for being antibacterial and green onions seem to be the most potent.