I will talk about 3 methods to cure it. 1st step will be the first method, 2nd step will be second method and so on..
Hope it helps you.
Step 1: Using Cardamom Powder
Take 2 Cardamom Small (Chhoti Elaichi) , grind them and take the powder with milk it will help to cure the disease. Best way is to take 100 grams cardamom and grind it you will have powder put it in airtight box to store it. Consume 1/4 spoon of it with milk daily.
Step 2: Using Copper Vessel
At night keep water in a copper glass and drink it early morning do this daily. It will cure the problem and has many other benefits of well being.