Arterial support, nervine, aids migraine. Flowers: antispasmodic, diaphoretic, diuretic. Bark: Cholagogue, emollient. Recent studies show Linden tea helps prevent childhood ear infections. Part Used: Flowers and keels. Leaves are an adulterant - the useful parts are the blossoms and the "keels," which are the green, leaf-like protruberances that many people mistakenly call leaves.
An infusion of fresh linden flowers is useful for colds, sore throat, and influenza, and also for mild bladder and kidney problems; but it is not to be used for long periods or heart damage may result. The infusion can also be used as a mouthwash and gargle. For external use, beat the inner bark until its mucilaginous content can be squeezed out and apply this to wounds, sores, and skin problems and blemishes. In the past, the charcoal from- linden wood was sometimes used externally for wounds and internally for halitosis, spasmodic cough, night sweats, and fever.