Its botanical name is Amomum zingiber linn. It is an erect herb with rhizome. It is chemically composed of an aromatic volatile oil having a characteristic flavor and containing terpenes, cineol and zinziberin. The plant part used is the dry and fresh rhizome. Its healthy values include

1. It possesses stimulant, aromatic and carminative properties when taken internally and when chewed acts as a sialagogue.
2. Externally applied ,it is rubefacient which relieves headache.
3. It is of much value in atonic dyspepsia, especially if it is accompanied with much flatulence and as an adjunct to purgative medicines to correct griping.
4. When chewed it is serviceable in relaxed conditions of uvuvla and tonsils.

check my signature for more info on medicinal and healthy benefits of food we eat daily