Herbs are any plants that are usually used for food and medicine. They are classified as culinary herbs and medicinal herbs. Any parts of the plant are considered as herbs these might be leaves, seeds, roots, flowers, bark, berries or any other parts.
Some people believe that herbal medicines are safer because they are organic and natural and herbs typically have fewer side effects. Herbs if use properly are highly effective and safe. Alternative or herbal medicines are becoming popular worldwide because of so many usage, from healing, nourishment, preventing illnesses to beauty remedies. Also, it is good to remember that many common drugs are derived from plant-based sources.
Please do remember that there will always be a risk for anything. There are plenty of deadly poisonous plants or improper use of herbal medicine can be dangerous. It is still important to ask for opinion or seek help to a health professional.