boa foggy eyes

[wdissident]

ok so i've had my boa for a month. there is a little old shed on his tail, when i picked him up today his eyes were very foggy and his head a lighter color. i looked it up and im guessing hes about to shed. from this point how long do they take to shed? i've read to not feed while hes about to shed, i have just introduced a moist hide into his enclosure because i want to help with his shedding. thanks again