Ashtangasamgraha 26.19

26.19

muhuḥ karaiśca toyardraiḥ svidyate hṛdayaṃ spṛśet |

śītaśūlakṣaye svinno jāte 'ṅgānāṃ ca mārdave |

syācchanairmṛditaḥ snātastataḥ snehavidhiṃ bhajet ||

And while one is being sweated, one should touch the heart frequently with hands wet with water.
When cold and colic have ceased, when sweating is complete, and softness of the limbs has arisen,
he should be gently massaged, bathed, and then follow the regimen of unction.