Nigella Sativa (कलौंजी) is a very successful medicine. If you wish to trace more and more benefits from Nigella Sativa then take out oil out of it. This particular thing is able to cure all your diseases and ailments except death. It will keep you away from Sugar and Thyroid. Gurmar Booti is also a very nice medicine that you may get from raw Unani and Ayurvedic medicine sellers. You can make powder from Gurmar Booti and eat one spoon of this powder thrice a day. As a home remedy you can also take Marz Dhaniya, Fenugreek (मेथी) and Indian Roseberry (आंवला). Grind them finely and take take a spoon of this powder twice or thrice a day. It will control your thyroid.