If you got her at a pet store, and she's tiny, she's not wild-caught. She's captive hatched, meaning the adult female snakes that are gravid, are taken from the wild and placed in holding pens until they lay their eggs. Those eggs are incubated in captivity, the babies hatch, and immediately are sent over to the US and other places even before their first shed. They don't even get the chance to drink African water.

They don't require any special treatment other than what you would normally buy at a pet store(treat for ectoparasites, ie mites and get a fecal done at your vet).

If she's small, put her in a 6qt tub with a heat pad on a thermostat, paper towels as substrate, one hide and a water bowl. Leave her alone for a week and try feeding a live hopper mouse at night. If she doesn't eat it, wait a week and try again.