Dear sir, how can i cure stomach cramp, which way is the best for short time curing?

Maybe TUMS (calcium carbonate)?: I can't tell what you really have based on the short inquiry provided and so not able to better/more specific recommendation. Tums (calcium carbonate) are quite safe and may help with intestinal/stomach cramps as when you get sick from a "stomach bug" warm fluid/tea can sooth it as well. Long term cramp maybe from illnesses such as ibs, crohn's diease, colitis etc...Which require eval by doc. Good luck.