Has been known to slow bleeding, aid colds, ease burns. As a poultice or a tea, comfrey may be applied to bites, sores, rashes, broken bones, and cuts. Also a good ingredient for lotions to soothe sunburn. It is a powerful remedy for coughs and ulcers. Comfrey is used in treating asthma.

Large amounts taken over a period of time can cause liver damage, but there are no indications of problems with using it externally.

Used internally, it is best and safest to use a tea, rather than capsules.