The Compendium of Kāśyapa 8.2.16

8.2.16

alpadoṣe jvare mṛdvī kriyaḥ kāryā vijānatā
svāni rūpāṇi kārtsnyena yadā vyādhau viśeṣataḥ

and when fever has slight humours, a gentle therapy should be performed by the discerning [physician]. / When especially in a disease its own characteristics appear completely