Heterobasidiomycetes, including the jelly, rust and smut fungi; Previously the entire Basidiomycota were called Basidiomycetes, an invalid class level name coined in 1959 as a counterpart to the Ascomycetes, when neither of these taxa were recognized as divisions.
Too much of anything is bad is general rule of thumb. I found several articles which favour eating peppermint and detail side effects of over consumption. But in general there are some side effects of eating altoids and other mint gums. Mouth sores, headaches, stomach burns are few of them. Check out following links for more information. peppermint: Uses, Side Effects, Interactions and Warnings.
Lukewarm chamomile tea is a good remedy for common stomach ailments in babies. This herbal tea will soothe the pain and relieve stomach discomfort. Chamomile tea (warm and not hot) when given in small amounts to colicky babies can benefit in decreasing stomach pain. Intake of chamomile tea can improve the digestive system, thereby relieving stomach aches.