dont eat too much "liang" food. food like coconut water or pineapple. also avoid cold drinks and deserts, its believed to make ur cramps even more painful..
I will take red bean soup to increase "blood count" (pu xue). ha... cos at times get giddy/fainting spell during 1st, 2 days. Other ways is to take beef/liver to increase blood count. Avoid tea as it is also liang.