தூதுவளை. find out - plant which cure many throat problems. for your clear voice you need this!. The parable: A girl says that she gonna grind and eat and have some thoothuvalai in her throat, and gonna talk with her boyfriend for days. (தூதுவளை https://en.wikipedia.org/wiki/Solanum_trilobatum) why i say here is its a great medicine for throat problems. I wish America should not try to claim patents on it like Turmeric/Neem. Tamil medicines are herbal,natural and being used since >/30000 BC