For treating various digestive disorders, nervous tension and irritability and is also used externally to treat skin problems (herb); in the treatment of irritable bowel syndrome, Crohn's disease, peptic ulcers and hiatus hernia (flower infusion); to treat wounds, sunburn, burns, haemorrhoids, mastitis and leg ulcers (flowers)
Contraindication
Some people may show an allergic reaction and excessive doses can lead to upset stomach and vertigo.
Reference
Stary, Medicinal Herbs and Plants.
Sharma, Classical Uses of Medicinal Plants. Johnson T. CRC Ethnobotany Desk Reference (www.herbweb.com/herbage).