Cardamom Uses:
Mutrakrichrahara – Relieves dysuria, urinary retention, acts as diuretic
Arshahara – useful in piles, hemorrhoids
Shwasahara – useful in treatment of asthma and chronic respiratory disorders.
Kasahara – useful in cough and cold
Kaphahara – balances Kapha, useful in productive cough, asthma
Kshayahara – useful in chronic respiratory disorders, tuberculosis
Hrudya – acts as cardiac tonic, congenial for heart
Rochana – improves taste, relieves anorexia
Deepana – improves digestion strength
Vatahara – useful in treating disorders of Vata Dosha imbalance  such as neuralgia, paralysis, constipation, bloating, etc
Pittartihara – relieves pain and burning sensation
Pumstvaghna – excessive usage may harm fertility
It helps to relieve burning sensation and gastritis
It is useful to relieve vomiting sensation, irritable bowel syndrome, gas build up in stomach,
Cardamom for bad breath problem:
Bad breath problem can occur due to indigestion. Because of its pleasant smell and due to its digestive properties, keeping a small piece or two of cardamom helps in improving digestion and relieving bad breath.