Dabur Ayurveda Immunity, Cold & Cough Relief PackDabur Chyawanprash: Chyawanprash increases your body's ability to fight with disease causing bacteria and even improves the process of digestion. It is rich in antioxidants and helps in strengthening your body internally. Dabur Tulsi:Be it children or elderly people, catching a cold due to a weak immune system may turn adverse. However, using the Dabur Tulsi Drops helps you with curing cough and cold along with acting as a Natural Immunity Booster.