用毛巾包住, 包多2層, 基本上係無direct contact舊, 唔嗱嘅, 只熱. 敷住, 如太熱, 拿開一陣再敷. 直到舊凍. That's it. The ginger cannot be reuse cos no ginger juice. Dried. About 20-30 minutes, 你會好舒服, try.
No need to 敷太耐, 因經絡行走你個身一周about 30 minutes.
我用個cotton粗頭帶, sip2舊落頭帶, fix at太陽穴, lay down, usually you will go to sleep, when you wake, you will feel better. The ginger will get cold, can take away.
Oh forgot, the ginger no need 批皮, so 唔拿. When the ginger is hot, use chopstick to pick them up and wrap in towel.