*Sufficient quantity of ''lavana'' (salt – rock salt) is required to maintain optimum osmotic pressure so that ionic exchange takes place. If optimum osmolality is not attained the active ingredients which are supposed to be absorbed through osmotic pressure are not absorbed and thus desired efficacy may not be achieved. | *Sufficient quantity of ''lavana'' (salt – rock salt) is required to maintain optimum osmotic pressure so that ionic exchange takes place. If optimum osmolality is not attained the active ingredients which are supposed to be absorbed through osmotic pressure are not absorbed and thus desired efficacy may not be achieved. |