Did you get that baby at a show? Shoot, I bet it has regurged. Not good. So go to Kathy Love's website, cornutopia.com, and buy a bottle of Nutribac. Put that in the baby's water dish, and do it every day, changing the water daily. Do not handle it at all. After eight days, feed a very tiny meal- like a pinky head, which has been rolled in Nutribac. Do not handle for five days. Then feed the rear half of the pinky, again rolled in Nutribac. Do not handle for five days. Then try a very, very tiny pink. If you can't find a tiny one, just feed half a pink, cut in half lengthwise. Continue with the Nutribac indefinitely. When you are feeding whole pinks, cut about four slits in their backs, and continue to slit the backs of the mice for a LONG time, like till your snake is on weaneds or adults.
I'd search the viv very thoroughly to find the source of the smell. It's very likely that your baby regurged from the stress of being moved too soon after feeding. So as long as you never stress it again, and follow the regurge protocol, everything should be fine. The Nutribac replaces beneficial bacteria that was lost when the snake regurged. It's pretty important to get it and use it. Don't skip that part.