I've got a good crop of peppermint in my garden. It was there when I bought the house 12 years ago and it seems to be spreading. I don't like to see waste but the uses of the this herb seem limited to chewing gum & toothpaste. I've started drinking tea made from the leaves. Quite pleasant with a little sugar. I'm not sure if it does any good (or harm) It tastes strongly of menthol and I suppose might clear your tubes if you had a cold.