1. Heating powdered salicylic acid is not recommended as it can cause the compound to decompose, thereby reducing its medicinal efficacy.2. Salicylic acid is slightly soluble in water, and proper handling is essential. Start by mixing 100 milliliters of water with a small amount of powdered salicylic acid, gradually increasing the quantity from 0.5 grams to 1, 1.5, or 2 grams as the skin adapts, if at all.3. If the powdered salicylic acid is difficult to fully dissolve in water, the addition of medical alcohol can be considered. It is crucial to use medical alcohol, not industrial alcohol, to ensure safety and to thoroughly stir the mixture to aid in dissolution.