In Thai traditional medicine, has a dark purple colour with a taste that has a spiciness to it, but much more subdued than ginger. It has a hint of the normal spiciness and heat that you would get with ginger, with an earthy flavor. Black ginger has been claimed to cure allergy, asthma, impotence, gout, diarrhea, dysentery, peptic ulcer and diabetes. 
黑姜是一种功效出色的中药材，它性质温热，具有显著的祛风除湿作用，是中医临床上治疗人类风湿骨痛的常用药，在治疗的情况下可以用它健康服用，也可以把它研磨成粉末，直接口服，除此之外它对人类出现了腹部疼痛和头痛，以及胸类胀痛，抗酸，抗癌，降低血糖，降低胆固醇，补肾，促进新陈代谢等着也有特别显著的治疗作用，其止痛效果十分显著。