Ashtangasamgraha 26.33

26.33

agnerdīptiṃ mārdavaṃ tvakprasādaṃ bhaktaśraddhāṃ srotasāṃ nirmalatvam |

kuryāt svedo jāḍyatandrāpahāraṃ stabdhān sandhīṃśceṣṭayatyāśu cāsya ||

dhūmāsṛksrāvaṇanāvanāni śīlayet |

nāḍīsādhanaṃ cekṣeta ||

Sudation produces kindling of the digestive fire, softness, clarity of the skin, appetite for food, and purity of the bodily channels;
it removes stiffness and drowsiness, and quickly restores movement to immobilized joints.
One should practice medicated smoking, bloodletting, and nasal medication,
and attend to the management of the sinus.