Dehydrate bubbles on hands and feet with soap
New shoes or unusually hard work makes blisters on feet or hands. With a bar of soap you can drain the bubbles without hurting the skin.
Take a piece of soap, moisten this and rub the bubble thick and let the soap dry. The best way to do that overnight is with a thin sock, then you can air on it, without lathering the bed linen. The soap pulls out the liquid without hurting the skin.
It does not work with liquid soap.