In the Middle East, ajowan water is often used for diarrhoea and wind and in India the seeds are a home remedy for indigestion and asthma.  For reasons of both flavor and practicality its natural affinity is with starchy foods and legumes.  Because of its thymol content, it is a strong germicide, anti-spasmodic, fungicide, and anthelmintic.  Regular use of Ajwain leaves seems to prevent kidney stone formation.   It also has aphrodisiac properties and the Ananga Ranga prescribes it for increasing the enjoyment of a husband in the flower of his life

Ajwain is very useful in alleviating spasmodic pains of the stomach and intestines, in adults as well as children. Any colicky pain due to flatulence (gas), indigestion and infections in the intestines can easily be relieved by taking one teaspoonful of ajwain along with 2-3 pinches of common salt in warm water. Use half the dose in children. Mixed with buttermilk it is a good anti-acidic agent

For chronic bronchitis and asthma, mix ajwain with jaggery (gur). Heat the mixture to make a paste and take 2 teaspoonsful twice a day. However, diabetics should not take this preparation because of the sugar content. It helps to bring out the mucus easily. It also helps in chronic cold.

In an acute attack of common cold or migraine headache, put ajwain powder in a thin cloth and smell this frequently. It gives tremendous symptomatic relief according to some Ayurvedic experts.

If people who consume excessive alcohol develop discomfort in the stomach, taking ajwain twice a day, will be very useful. It will also reduce the craving and desire for alcohol.