1. Preparation of bath bag: mix Cortex Dictamni Radicis, Cortex Lycii, Radix Sophorae Flavescentis, Cortex Phellodendri, Cortex Moria, Cortex Hibisci, Cortex Dictamni Radicis, Rhizoma Smilacis Glabrae, dried alum and other herbs, pulverize into powder, and pack into non-woven bags, each bag is 30-50g.

2. Preparation before bathing: put the bath bag into a pot and add water to boil it, or soak it in boiling water for 10 minute until the water temperature is suitable.

3. Start bathing: When the water temperature is suitable, put the bath bag into the bathtub, add a proper amount of hot water and stir well. Then soak the whole body in water and keep it for 15-20 minutes, so that the herbs can give full play.

4. Follow-up care: rinse with water after bathing, put on clean clothes, and apply some moisturizing lotion or body lotion appropriately.