Mustard seeds is very healthy and is used for treatments. It helps to treat diabetes, insomnia, rheumatism, liver, and disease of windpipe. Also, it can be used to improve circulation.
The seeds itself have a high content of oils and proteins.
From minerals it has phosphor, calcium, and potassium; from vitamins it has Vitamin A, Thiamine, and Niacin; and it contains omega 3 oils.
If in case you have some kind of allergy of the products from seeds and you get redness on your skin, you should immediately wash that place and put on some fresh oil so that the redness would disappear.
Black mustard seeds in small amounts can improve digestive system.
Large amounts should not be consumed because they may cause irritation and pain in stomach and intestines.
For women it can also affect menstrual cycle, so as pain in eggs.
Compresses are being used because it is very strong seed and it can heal it because it gets through the skin and to improve metabolism. In that way it eliminates the risks of any diseases.