Dhanawantari is mentioned in Puranas as the God of Ayurveda. It is common practice in Hinduism for worshipers to pray to Dhanwantari seeking his blessings for sound health for themselves and others. Dhanwantari is depicted as Vishnu with four hands, holding Shanka, Chakra Jalauka (leech) and a pot containing rejuvenating nectar called Amrita. Meanwhile Ashwini Kumaa’s are twin Vedic deities who are considered to be physicians or healers of Demi gods and they are also extremely handsome.
Accordingly Ashwini Kumara’s are the sons of Lord Surya and Sangya. Ashwini is the "she-horse", and Kumara’s means "young boys". This is because they were given birth when Lord Surya took the form of a horse and Sangya took the form of a mare. There is an incident mentioned in the Srimad Bhagavatam which indicates that Ashwini Kumars are responsible for the sense of smell in living creatures.
Rudra is also living in the waters and the herbal
plants. Rigveda states that the rudras live in the waters, fire and the herbs.
Elsewhere in the same, it is also stated that the herbs are called “Apsaras”,
since they reside in waters. It is derived from the word “Aap” which means
water, in Vedic Sanskrit. Dhanvantari, the God, who came out with the pot of
the elixir, at the time of churning of the oceans, is of recent origin, and confined
to the puranas. It does not find mention in any earlier treatise. Even
nowadays, the God Dhanwantari is worshiped as the patron God of the medical
profession, and has a special day marked for it, in the Hindu calendar.
