good questions.

you can buy cayenne capsule already made or do like i do. i have a capsule machine so i fill "00" vegcaps with a quarter teaspoon of 180,000HU cayenne that i buy bulk at the health food store. i am currently doing about a teaspoon of that a day. not for the uninitiated, i must say. start slow and tolerence will build.

same thing with oregano oil - tolerence will build. start with one drop in your tbspn of oil. that will be plenty hot for a while. graduate up to eight drops, if you dare. after three or four weeks, break for a couple of weeks on the oregano. it is powerful stuff and should only be used at a rate of 1/2 drop per day(or less) over long periods of time.

if you really think it is an infection, gargling or waterpicking with a solution of h2o2 would help, too. i waterpick that way daily.