Hi all, Zandu balm is a very effective pain relieving product which I use quite often to get rid of headache.It is bit on stronger side when applied and it feels bit uncomfortable initial few seconds when applied and then it starts working. Normally, on a typical hard day at work, I come home and apply it to my forehead and sleep. I get so much pain relief. My children apply it to joints if they have pain in body due to exercising or sports. It also acts as muscle pain remover.When in cold time, I apply it to my children chest and they get rid of cold in couple of days. Overall, its very good product which is helpful to get rid of headache, cold in first place and is quite affordable also to buy.