Question about the i Mask protocol due to exposure.

It says take viatmins + Ivermectin day 1, then 48 hrs later.

Is that it? Should vitaimns be taken daily (just not the ivermectin?) Shoukd this be repeated at any point?

Does it change if there is a symptomatic person in same household?

Symptomatic person takes protocol × 5 days or for as long as symtomatic.