Take a few Neem leaves which are also known as Margosa leaves and a small piece of fresh tumeric. Put both in a blender, add a glass of water, a bit of salt and blend it. You may also boil lightly and filter it. This can be taken once a day.
You can infuse 1 oz. bruised Vashambu (sweet-flag/ Acorus Calamus) in 10 oz. boiled water and leave it for 1 hour. Filter and drink 1 oz thrice daily.