Licorice patch effective against canker sores
A patch containing licorice is an effective treatment for recurrent aphthous ulcers, known commonly as canker sores, says a new study published in the March/April edition of General Dentistry.
The new medication is an over-the-counter, adhesive patch with an active agent derived from licorice root. The extract was used as a prescribed treatment for gastric ulcers up until the 1970s.
A clinical trial tested the effect of the patch versus no treatment. After seven days, patients in the no-treatment group experienced an ulcer growth of 13% on average, while those using the licorice extract patch demonstrated reduction in ulcer size.
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