another user with a beardie named hades! great to talk to you
its probably okay, im not the best with beardies so it might be best to wait for another reply, but, if your dragon is older, like 2+ years, shedding will take longer and longer, so a week is normal for them.
if the shed is stuck like it would be in their nose, end of their tails, or on their claws, then it will be beneficial to give hades a soak with the water filled to his armpits
id say, give it a few more days, like around 4 or something, see if this is still an issue, and if it is carry out what ive previously said.