When wearing a yugake, they put on something like an underclothing, called 'shitagake' (cotton underglove), which is made from a thin material such as cotton and so on and the purpose of shitagake is to absorb a hand sweat and protect a yugake from the humidity, and when sweating on the hand, it is better to change it frequently.
ユガケを挿す際、下に「下ガケ」と呼ばれる木綿等の薄い生地で出来た肌着のようなものを付けるが、これは手汗を吸い取り湿気からユガケを保護する為のもので、手汗を掻いた場合はこまめに取り替えるのが好ましい。