Blisters...
Prevention and treatment are part and parcel of walking long distances with light or heavy burdens, especially over broken terrain. Don't think the above graphic example could happen to you? Trust me it can. And, without much fuss, you can find even worse examples out there on the interwebz. The graphic below shows the three primary areas blisters may occur because of incorrect fit of one's chosen foot wear, improperly broken in well-fitting footwear, friction from either socks (dry socks on wet feet or wet socks on wet feet), or loosening footwear as the wearer chooses not to occasionally snug the laces. There's a lot of prevention tape you can use, to include the old-school, silver duct tape, or military 100mph tape (basically green duct tape). Careful with these two, though: They have SUPER adhesive qualities, and if you pull them off too fast, you can hurt yourself. Usually, one needs some sort of adhesive remover or baby oil....or som...