There are many ways people try and cure their blushing. For the best information I think you should visit Http://myblushingcure.com but here is some basic info anyway.
People try to use beta blockers like propranolol, there has been some success with these but usually the side effects are not worth it. People have reported in there reviews that it makes them feel like a zombie. They are just always flat. But it does help with the blushing.
Beta blockers work by stopping the effects of adrenalin on your body, in some cases they stop adrenalin all together.
Antidepressants are another big thing that people try to make them stop blushing. Same as the beta blockers people reported feeling “out of it” like a “zombie