Still get a picture and put some KY on it asap. Time is really of the essence and here you are on day 2 with little to no action on your part. You don't have much time with this. If this is a prolapse and the tissue dries out. It will die, and without complicated (not likely to ever happen on a reptile) surgery your cham will die.
Regardless if this is a prolapse or not. The chance that it could be means you should put the KY on it and keep it moist until what it is can be determined. By either some one here or preferably by a qualified vet. If some one here can verify it as a prolapse, then you are going to have no choice but to take it to the vet.