Blowing of churna (powder errhine) is said to cleanse the body passages. Dhuma (smoke inhalation) is said to be of three types ie, shamana etc (palliative, oleating and purificatory) as mentioned before.
Pratimarsha is an oleative type of errhine without any adverse effects whatsoever and serves both (oleation and purification). Hence, the above mentioned 5 types of errhines fall into 3 categories – rechana (purificatory), tarpana (nourishing) and samana (palliative).
रक्तपित्तादिरोगेषु शमनं नस्यमिष्यते| ध्मापनं धूमपानं च तथा योग्येषु शस्यते ||९५||
In diseases like raktapitta (bleeding dyscrasias) palliative errhines are indicated. Powder errhines and smoke inhalation are indicated for appropriate ones