Ashtangasamgraha 32.16

32.16

And it must not be applied to those who are angry, frightened, anxious, grieving, exhausted, who have just eaten, who have just been purged, who have drunk medicinal smoke or liquor, who have received nasal therapy, who have stayed awake at night, who are suppressing natural urges, weeping, thirsty, feverish, vomiting, suffering, whose eyes are fatigued or injured, who are suffering from headache, who have just washed their heads, and when the sun has not risen.
In these, the heat rising upwards from the collyrium would cause irritation, lacrimation, pain, cloudiness, burning sensation, redness, rheum, pricking pain, difficult opening [of the eyes], swelling, corneal opacity, cataracts, and the like.