Into which two kinds does the text divide treatment, and what does external treatment consist of?

Detailed answer

Verse 30 calls dharma the internal cause of calming disease and external treatment an auxiliary cause, which is what the book describes. Verse 31 says that by following dravya, kṣetra, kāla and bhāva and applying oleation, sudation, emesis and purgation, or excision and incision in diseases that need them, the sick person becomes well. Earlier, verse 14 says the wise call the practice that calms karma, such as worship and meditation, the real treatment.