As was said: Wait two weeks and feed smaller prey size than what the snake would typically eat.
When snakes regurge, they throw up all of the acids that they have to break the prey down. If you feed too early, there won't be enough acids and regurge could happen again, being dangerous to the snake and the esophageal lining, etc.
So, wait two weeks (at least) and feed a smaller prey size; much smaller.