Sources: Papers On Health
A most effective preventive and cure for this is the
inhaling through the nostrils the vapour of strong acetic acid. The
acid may be on a sponge enclosed in a smelling bottle, and its vapour
may be freely inhaled. Sponge all over each night with hot acid and
water. The head also may be wet with pretty strong acid, and tied up so
as to keep in the vapour. Do not, however, use a waterproof covering.