Take 15 grams of dried rambutan skin. Add this to 3 glasses of water after which boil for Fifteen minutes. Let the liquid to turn cool, strain it and after that take in 3 times each day. Rambutans are small red colour fruits with spiky hair on the skin. It has a sweet, juicy flesh which is slightly acidic and small brown coloured seeds whose oil is used in a number of industries. Rambutans are available in two colours, red and yellow.