Rosemary (Rosmarinus officinalis) is used to treat a wide range of illnesses. Rosemary oil used to treat headaches and muscle spasms. It is also a detox, mouthwash disinfectant, and used to improve memory. If you suffer from pulmonary edema or take lithium, warfarin or lasix (diuretic) or other medications, don't take rosemary oil or other form. Avoid if you're pregnant. Long-term use can negatively impact sperm production.
Neem has a very long history as a medicinal herb in fact the history of neem stretches back all the way to one of the oldest texts known to man. The properties of neem are spoken of in some of the ancient Sanskrit and the Sanskrit word for neem (nimba) actually means "good health". Neem is a tree so it can be hard for some to classify it as an herb but I just couldn't leave this one out of our list of herbs. After all the people of India have been using neem for over 4,000 years now so it is something to consider when talking about herbs. Today neem is used for many reasons including skin treatment for eczema, scabies, head lice, and psoriasis. In addition to being good for the skin neem is also renowned for its benefits on your hair too.