The other thing I'd add is that it's really important under normal circumstances that they be left alone to shed and part of his reluctance to eat could be the measures you attempted as he was shedding, not to say that taking the clump out of his mouth wasn't the thing to do as in this case it certainly was but the bathing and removing of old skin for him may have left him more tender than usual from a shedding since the new skin comes with the same kind of heightened sensitivity we'd have from something like an abnormally abrasive exfoliation treatment at the spa or one of those microderm abrasions people get.

I know people don't like to do things au naturalle in the pet world but of all the substrates available I recommend using good, clean dirt which is what Toads of this kind live in. They burrow, and they love doing it, so if they can't burrow to their hearts content they need to be able to do that as much and as soon as you can make that possible.

You should have as much of a larger tank for them as you can find and/or afford with a good six(6) inches of soil throughout for them to get as down and dirty in as they please. Drop their food onto the surface and they'll emerge at night to hunt it like they do in the wild.

On top of the soil you can put large pieces of tree bark which they'll happily burrow under. They'll love you for all of these things.