I was going to ask about hydrocolloid bandages in general. I think the 3M name is tegaderm, and J&J sells some too with names like "advanced healing" or some such.

They're not just meant to be a contact layer, but rather the entire covering. They're meant to function like an artificial scab, so the wound can stay wet and heal underneath. They stay on for upwards of a week at a time but can't be used on infected wounds.

Does anyone have experiences with this type of dressing/bandage they could share?