...попал на очень неприятную болячку. Картинки не буду вывешивать в силу их бооольшой неприглядности. Все, кого заинтересует,  могут посмотреть тут...

Соурс:

Epidermolysis bullosa (EB) is a group of inherited diseases that are characterised by blistering lesions on the skin and mucous membranes. These may occur anywhere on the body but most commonly appear at sites of friction and minor trauma such as the feet and hands. Blisters may also occur on internal organs, such as the oesophagus, stomach and respiratory tract, without any apparent friction.