With proper technique and careful attention to the preparation of the herbal mixtures, the use of fumagatory compounds is efficacious in the treatment of many ailments.

A brazier fire for fumigation

Place the brazier on a flat stone, making sure to have fire dousing materials (such as a lid for smothering the brazier and a bag of sand for dousing).
Mix equal parts Alchemist's Alcohol and Epsom Salts by weight. The smoke shall be mostly harmless, and it does not burn as hotly as would straight alcohol alone.
Place this mixture inside your brazier and set afire.
Suspend the fumagatory bowl half filled with clean water over the flames.
Add the necessary herbs in the appropriate sequence.