How long should the treatment be effective?
治疗应有效多长时间？
It is said that the effect may be felt even once, but it is said that the effect can be sustained for a longer period of time if the treatment is repeated 3 to 5 times every month.
据说甚至可以感觉到一次效果，但是据说如果每月重复治疗3至5次，则效果可以持续更长的时间。