One of the eggs I received in the mail yesterday showed a crack when I candled them. Today, before I set them in the incubator, I would like to put some plain unscented wax I have on the crack. I'm not sure how to do that, if it is safe to drip hot wax on an egg or if you cool it to a certain point before spreading it on. I would be very appreciative to know how it was done by those that were successful with it. Thanks!