As this is a condition primarily of young children, symptoms are rarely reported. The child will become suddenly uncomfortable and miserable. As the digit is often inside a sock, the cause may not be clear. The affected toe can no longer receive an adequate blood supply via the arteries, nor can blood be drained via the veins. The toe will therefore swell and turn blue, indicating ischemia. The ligature will not stretch in response to the toe swelling and will therefore cut into the skin in more severe cases, like a cheese-wire.
Hair tourniquet
Hyperbaric stretcher
Baffle 
Unna's boot
Shoe insert
Liquid bandage
Heating pad
Positive pressure personnel suit