Every 3-4 days is too soon, you are risking another regurge by not giving her chance to digest the last meal.
As made clear above, when recovering from a regurge you have to be so careful and feed items much smaller than normal. Please take care.
the frozen pinks are much smaller than the live ones were. And I had fed her two. I don't think these even weigh one gram. To me, as long as they poop after their last meal, it should be o.k.
http://cornutopia.com/Corn Utopia on the Web/- CARE SHEET Cornutopia corn snakes cornsnakes.htm
kathy love says 3-5 days. I wait till she starts "hunting" around the cage.
I was only trying to offer a suggestion since the petsmart pinkies were very small.