How effective or useful is the epi-kool pad?

Only work for the first 15min. If it's really sore down there, get a condom fill with water (not too full) n freeze it. Take out from the freezer, wet it once and Wrap w 4 paper tower put it on ur panty for 10-15 min damn shiokkk. I had bad sore n I did this for 3-4 days, did every 4 hourly. It helps to reduce sore n pain