The zandu balm was the one which gives a complete relief from all my pain related problems like head ache, knee pains, shoulder pains , cold, as well as back pain but the zandu ultra balm which was created in this time period was 30 times more painer than actual zandu balm by using more zandu balm also we will get some side effects like getting pimples on face and somewhat skin damages. The advantages of zandu balm are 1. The zandu balm gives a relief within three to four minutes when we come out from the office with out having any rest it will give relief so we can thank zandu balm as well as the zandu balm inventers 2. I support the zandu balm you can buy it. Because it is in a reasonable price as well as it is working this is my review on zandu balm