1. Substance manufactured in thin sheets from wood, rags, or other materials.
2. A square of paper folded over so as to form an envelope containing a dose of any medicinal powder.
3. A piece of blotting paper or filter paper impregnated with a medicinal solution, dried, and burned; formerly, the fumes were inhaled treat asthma and other respiratory afflictions.
The definition information for paper is provided by Stedman's. You can search our medical dictionary here.