Zandu balm is a very good and relief full pain killer. It is very easy in application and it gives very fast result. Whenever I feel pain in may head I just apply it on my head and it gives good result. It feels very old when apply but this is its healing property to give a cool relief and after time it remove all the pain I have. Result is realy very good. The cost is not so much it is economical product and value for money.