Teeth are sore or loose---Probably normal. Take over-the-counter pain reliever, eat lite and soreness should resolve over days.
Poking wire --- Soften at least half stick of orthodontic wax between fingers and place over sharp area as needed.
Loose brace--- Only a problem if it causes discomfort. Use orthodontic wax
Hanging wire---Use new fingernail clipper or carefully use small scissor to clip wire near next fixed brace and remove wire. Otherwise try to pull wire and remove.
WHEN ALL ELSE FAILS --- CALL DR. GREEN'S CELL--- 516-233-9444