Brought home a severely underweight BP baby. Please help me get her back on track

[Spoons]

Left her alone today, except a brief check on that red spot on her side to make sure it isn't something more than a scuff, or getting worse. The spot is looking better, it took me a a bit to find it. Her condition broke me heart all over again. So wrinkly, even her head has wrinkles. Her belly is sunken in, forming a concave 'n' shape. Her skin feels so soft and delicate, like a geriatric person's skin. When she lays down, she's so flat, her skin kind of puddles underneath her. Her scales keep catching on my hand, I was unsure if that was due to being dry, or so thin that her skin isn't 'tight' so to speak. Ishould have taken a quick pic but I wanted to get her back in the tank ASAP.

Very sweet though. Crused around a bit for the 30 seconds I checked her spot, then settled back in under her hot hide. I'm wondering if I should soak her once more? Or let her be and drink of her own accord? Or maybe just mist and let the heightened humidity take care of it? I want it quiet and peaceful for her to acclimate, but I also want her to get better. I am leaving a few days this weekend so I thought I would try feeding Saturday. (The wait is going to be brutal, I want her to eat so badly!)

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