Oh my god, we definately had the same symptoms. I always had to take my first day off. And me too, after gave birth to my son, I was recovered. Now the symptom is so minor that it does not hurt me any more.

Walmart Pharmacy 有一种药叫Pamprin，估计其他的drug store/pharmacy 也有卖，效果很好。

吃Ibuprofen,副作用小，我每次头几天都吃

上海中医院一教授告诉我：买新鲜的姜洗过切成片，然后加红糖，用冷开水加在一起，不要太多糖，但要足够甜，泡一周后开始吃，也就是在每月月经时吃那么几片，对我有用。反正味道蛮好的，何不试试呢？不过我的情况不严重。