Researchers suggest that cayenne pepper, due to its spice, is able to stimulate a pain response in a different part of the body. Once this happens, the brain puts its attention on that new site and will no longer concentrate on the pain in the head, which causes the migraine.
Blood clots are blockages in your arteries and blood vessels that limit blood flow through your circulatory system. Cayenne encourages fibrinolytic activity and helps prevent blood clots. This is also the reason why cayenne pepper is effective in preventing heart attacks. The capsaicin in cayenne pepper helps to clear away artery-narrowing lipid deposits, and dilates arteries and blood vessels to clear away clots.