It's generally best to wait until the snake has fed. Give the snake 48 hours after the first feed and then handle for 5 minutes or so. As the snake gets used to its surroundings and you, you can start to increase the handling time. Try not to over handle until the snake has had a good few feeds, and stop handling if the snake stops eating.
1.0.0 Mexican Milk 0.0.1 Mexi Black 0.0.3 Corns 0.1.0 Western Hognose
Good advice from Headlow, leave it a minimum of two weeks and make sure she is feeding then just handle for 5 minutes to begin with. Young kings can musk sometimes as well but don't let it put you off. It smells a bit but washes off very easily
1.1.0 Arizona mountain king (Sylar and Claire) 0.1.0 Blotched king ( Jasmin) 1.1.0 Guyana red-tail boa (Hercules and Athena) 1.0.1 children (Alfie and BUMP)