Ajwain is effective to stomach pain. Having the problems of flatulence indigestion and gas release take 1 tsp of ajwain along with water for one week. Thymol the essential oil extracted from Carom seeds are used as anti-bacterial and anti-fungal. A spice that every Indian household is all too familiar with and without which every dal tadka is incomplete ajwain is derived from a herb plant that originated in our very own country. Ajwain seeds vary from being slightly olive green to brown in colour. All parts of this herb have a very strong scent hence it is also known as Ugragandha in Sanskrit. The seeds have a bitter and pungent flavour somewhat like oregano and because of its strong aromatic essence it is often added to curries and pickles. It is one of those rare spices that fulfill the twin purpose of adding flavour and being good for health."Ajwain powder is especially useful in lightening acne scars. Apply a paste on the affected area for 10-15 minutes and then rinse".