At times, depending upon the type and state of disease, bathing or fomenting in the steam of boiling kwatha of specific types are advised. In such cases, the prescribed herbal medicines are to be cooked in a pressure cooker with about 1-1.5 kg water. A tube of appropriate size (and of material that could bear the high temperature) is to be connected at the outlet for steam (where usually a weight-whistle is kept on the cooker). A small piece of cloth is tied on the other end of the cloth; the desired body-part is exposed to this end at a safe distance so that direct spray of steam does not burn the skin. If available, an appropriate steaming device should be used instead of pressure-cooker. After steaming for prescribed duration of time, the desired body part should be fomented by gently bathing it in the medicinal solution (left in the cooker) while the latter is cooled up to a bearable temperature.