No they do not.
Millipedes Molt.
Millipedes do not crawl into skin. Millipedes are more likely not to even bite. You might be thinking of centipedes but either will not crawl under skin. Centipedes though are poisonous to certain levels and are able to bite.
your moms
No African Dwarf Frogs do not shed there skin.
They regularly shed their skin its quite irreagular for them to shed skin though..
Yes, as they grow they will molt (shed their skin) a number of times before they pupate. Lar
Corn Snakes? Yes, all snakes shed their old skin.
the shed there skin
No, eels do not shed their skin like a snake
Shed
Geckos shed old skin because it get old and dry and so they can grow bigger, we shed our skin to it takes a whole year to shed the whole of it but we do shed too :)
As snakes grow the skin doesn't grow with them, so they shed the skin because it no longer "fits" them. By shedding the skin they can get larger, and grow.
ALL snakes (and lizards) shed their skin periodically. The general rule is - the younger the reptile - the more frequently they shed. Reptile skin is regenerated all at once - not in tiny flakes like human skin. Thus they have to shed their skin in order to grow.