Peppermint tea is generally considered safe for regular consumption. Peppermint oil can cause burning and gastrointestinal upset in some people.¹³ It should be avoided by people with chronic heartburn, severe liver damage, inflammation of the gallbladder, or obstruction of bile ducts.¹⁴ People with gallstones should consult a physician before using peppermint leaf or peppermint oil. Some people using enteric-coated peppermint capsules may experience a burning sensation in the rectum. Rare allergic reactions have been reported with topical use of peppermint oil. Peppermint oil should not be applied to the face—in particular, the nose—of children and infants. Peppermint tea should be used with caution in infants and young children, as they may choke in reaction to the strong menthol. Chamomile is usually a better choice for this group for treating colic and mild gastrointestinal complaints.