Marjoram benift and side effect, please?

Majoram: Majoram also known as oregeno is herb that is said to have antioxident qualities. As such it is good against colds, headaches and stomach aches.

Marjoram: People make medicine from marjoram’s flowers, leaves, & oil. Tea is used for runny nose & colds, coughs, swollen nose & throat, & ear pain. Also used for various digestion problems including poor appetite, liver disease, gallstones, intestinal gas, & stomach cramps. Safe when used for short periods of time. Skin contact can cause eye & skin swelling. Might be unsafe long-term. Could cause cancer.