According to your description, you can't just use a massage basin.

Guiding opinions:

I suggest that you can use traditional Chinese medicine instead of water to put it into the massage basin, which will have a good effect. Stemona, Cortex Dictamni Radicis, Radix Sophorae Flavescentis, Fructus Kochiae, Herba Schizonepetae, etc. can be decocted in water to obtain medicinal liquid instead of water for treatment.