Soaking in water has the effect of expelling wind, unblocking collaterals and activating blood circulation. The loofah collaterals are good at expelling wind and unblocking collaterals, and the medicine is mild. It can be used to treat rheumatic arthralgia, muscle and pulse contracture, limb paralysis and other diseases. Luffa collateral flows into the liver to activate blood circulation and unblock collaterals, which can be used for chest and flank pain caused by stagnation of qi and blood. Luffa collateral is light and convenient, and good at unblocking collaterals. Luffa collateral can be used to treat patients with little or no milk after delivery, and can also be used to treat swelling and pain of breast carbuncle, traumatic injury, chest pain, etc. Luffa collateral contains xylan, mannan, galactose, etc., which can be soaked in water to have obvious pain relief Sedative and anti-inflammatory effects.