Things to try for a baby hoggie who hasn't eaten in over a month

[Little Wise Owl]

I'm going to stress putting her into a smaller enclosure along with leaving her alone. In another post I think you said she was originally in a 5 gallon at the store and now she's in a 10 gallon. That's too big. Baby hogs stress out easily. I really think she should be put into a smaller cage until she's readily feeding.

TL;DR
Put her in a small enclosure (similar to the one I linked above) with a UTH and leave her alone. Do not handle, look or disturb her at all unless absolutely necessary. Then a two weeks later offer a warm f/t pinky.

This is what I kept my 10 gram babies in when they weren't eating (they were previously kept in a 10 gallon too)

Worked like a charm. Now they're in much larger tubs in a rack and eating voraciously

[Minkness]

I kept my babies in 3 gallon kritter keepers, then 5 gallon tanks, and only get up to 10 gallons when I see them being overly restless in the 5 gallon. My 2 larger females are now in fairly large tubs. So, that makes 2 juvie males in 10 gallons, 1 small juvie male in a 5 gallon, and 2 adult females in 16 qt tubs. No one is moved up until they are feeding/shedding properly and they show an interest in a larger enclosure.

For a while I had one that would only eat if I put him in a metal water bottle in complete darkness with his pinky. 5 mins later...no pinky. He now readily takes pinkies off the tongs (after hissing several times).

Also, it doesn't hurt to leave the pinky in the small enclosure for a full 24 hours. The stink attracts them. Another of mine went through a phase where that's the only way he would eat them....so happy he's over that now....