把热水袋或热水瓶放在肚子上。 泡个热水澡。 服用止痛药，如：布洛芬，扑热息痛，或者专门针对痛经的止痛药。 对于严重的痛经，咨询医生可否使用避孕药。 避免以下行为来预防痛经。

I'm interested in that, but I only have a few mins. Can you give me at most the first 500 characters of a detailed explanation in English about that?
Alternate the hot water bottle by placing it on your lower back. (You may need to have two hot water bottles handy in order to do this. A warm bath is another form of heat treatment used to reduce the pain of cramping in women. Warm baths are believed to relax the muscles of the body, making the pain less noticeable.  Try putting a cup or two of Epsom salts in the bath. Epsom salts are high in magnesium, a deficiency of which may cause cramping. Soak in the bath for at least 30 minutes. Try addi