It can also be helpful to reduce histamine levels associated with allergies and conditions such as hayfever, asthma, dermatitis, urticaria, and psoriasis. Due to its emmenagogue actions, it stimulates blood flow in the pelvic area and uterus, stimulating menstruation in females. As this herb has an anti-inflammatory effect, it can be beneficial in rheumatoid arthritis. Fresh leaves (2 daily) can be chewed or it can be brewed as an infusion as a tea. It is a bitter herb that can be sweetened to be more palatable.