Accepted Answer

The halogen lights are not enough. It's not that the light from the window is the problem, it's the lack of direct UVA and UVB...which takes a long time to start causing the calcium deficiency, and a long time to correct it...much more than a week.
Avoid the neosporin, the antibiotics contained within it can be toxic to the kidneys. Swabbing with small amounts of hydrogen peroxide. If you've seen pus, it would look like very thick yellow cheese or hard yellow cheese.
I wouldn't use the salts in his soaking water, that will counteract the hydration you're giving him by soaking him.
The ultraviolet lights come in long bulbs, and are in the major chain pet stores, along with the housings. Even if there is no current fracture, proper calcium balance is also important for muscles, the heart, and kidneys in addition to bone. Many ig's die at 5 years old that could have lived much longer due to calcium deficiency. The UV lamps don't add much heat, just the much needed calcium.
If you use peroxide, make sure he can't swallow any substantial amount of it...just dip the cotton swabs in the peroxide until they are wet and use those.
Again, if there is a fracture, the calcium deficiency takes 4-6 weeks to make up for once the lights, and supplements, are in place. The fracture itself would take 2-3 months to remodel the swelling back down to normal bone, if it ever did so completely.
If it is just an abscess, I have never had much luck with just topical antiseptics. The anti-inflammatories make it more comfortable for him to eat, and systemic antibiotics are a lot more effecient and helpful in conjunction with topicals.
You may have some difficulty finding a vet that routinely sees reptiles in your area, so I would suggest starting to look soon. Where I work is probably the only place in 30 miles, of a densely populated area, that is comfortable with reptiles. If you need help finding one, please let me know, and I will help you look.
I'm sorry that there isn't an easy home remedy for this. I always feel terrible when people have come in after such an amount of time that have tried a number of things, only to have the situation much worse down the line.