Medicinal plants have similar properties as conventional pharmaceutical drugs. It has an application in pharmaceutical, cosmetic, agricultural and food industry. Studies carried out during the past 2-3 decades have revealed that these photochemical have a significant role in preventing chronic diseases like cancer, diabetes and coronary heart disease. Many medicinal herbs are having blood cleansing properties and antibiotics properties. And also reduces the fever, neutralize the acidic nature in stomach. Few medicinal plants like Bael, tulsi, pudina, henna, cinnamon, lavender, marigold, turmeric, cumin etc., are used in the treatment.