Garlic can be effective in fending off a cold. Echinachea is a popular immune stimulant that can be used to fight off infections. The root of the plant can be used to make a tea, or the whole plant can be dried to make a powder. Rosemary is calming to the nervous system, dispels gas, and is helpful with memory. The stems and leaves of the plant are used in a tea.
Oregano is a culinary herb that is also very medicinally active.
It is often used as a gargle for sore throats. The leaves can be used to treat fungal growths on the skin. Lemon balm, also in the mint family, is easy to grow. Calendula is a healing plant used on cuts, scrapes, bruises, burns and rashes. Its flowers can be applied topically, made into a tea, or infused with oil to make a topical treatment.