Mustard-plaister

The best mustard-plaister is made thus : take of mustard, in powder, two and a half parts, linseed-meal two and a half parts, boiling water ten parts.

On removing a mustard-plaister, you must immediately cover the portion of the skin, over which it was applied, with a piece of flannel, or with cotton wool.

He said there was nothing the matter with me, and prescribed a mild solution of peppermint, which was neither nice nor useful; in the evening he came again, and ordered leeches and a mustard-plaister.

One of the first occasions on which the reader is introduced to him when not enveloped in this fog is when his mother and a doctor roll him up in too strong a mustard-plaister.

...these Gissing 'mustard-plaisters' are still much coveted by collectors, and it is well worth rescuing from "the inequity of oblivion" examples of other Gissing novels published in the uniform series and house-styles of the 1890's and after.