I pop water blisters whenever i get them. They hurt a bit when you pop them, but throw a bandaid on, go to bed and the next morning it will be healed and you wont have to worry about it breaking on you during the day. It may be a little tender tomorrow but its better to have tenderness then a constant fear of it popping and hurting. If it hurts as bad as people think, bite down on a cloth when you do it.