What Is Licorice Good For?

Licorice is derived from the root of the plant scientifically known as Glycyrrhiza glabra. It has a sweet anise flavor due to the compounds anethole and glycyrrhizin. Licorice root's pleasant flavor makes it useful as a food flavoring as well as an ingredient in various herbal remedies as it masks the bitter tastes of other components. Licorice root also has its own medicinal value.

Ulcers

Licorice root shows some promise as a treatment for peptic ulcers, although the scientific evidence is somewhat mixed. Licorice coats stomach linings with a protective film. Physicians prescribe a form of licorice without glycyrrhizin called deglycyrrhizinated licorice, or DGL, for peptic ulcers as this seems to minimize certain side effects.

Sore Throats

The University of Maryland Medical Center notes that licorice tea or a piece of licorice root for chewing is suitable for older children to use as a soothing treatment for sore throat. Adults may also use this sore throat remedy. The demulcent activity of licorice is again responsible for its effectiveness in this area as it lines mucus membranes in the throat with a protective film. Do not give licorice tea to infants or toddlers.

Coughs and Congestion

Licorice tea and syrup is a time-honored remedy for coughs and congestion as well, although scientific evidence for its effectiveness is limited. It may simply be the sweet, soothing taste and demulcent action that offers brief symptomatic relief and comfort.

Antiviral

Licorice has shown some promise as an antiviral treatment. Science Daily reports that glycyrrhizic acid, a compound found in licorice, inhibits the expression of latent viruses such as those that cause herpes and Kaposi's sarcoma. Topical applications of licorice in cream or poultice form may help heal cold sores, genital herpes sores, Kaposi's sarcoma lesions, shingles and chickenpox.

Side Effects and Warnings

Licorice should not be taken by those who have high blood pressure, heart disease or diabetes. Pregnant and breastfeeding women should avoid licorice as well. Licorice may cause low blood potassium and raise blood pressure. Allergies to licorice are rare but not unheard of. If you experience itching, swelling or difficulty breathing after taking licorice, discontinue use immediately and contact a medical professional as soon as possible.