My cat has mange how should I apply nustock on her and should I thin out medication please let me know don’t want her to die

You apply the nu-stock 1 time every three days. You don’t “thin” it but you might want to try a “cone” around the neck if you think she might lick too much of it off. It won’t hurt her if she does lick it, it might make her sick (throw up) if she licks too much of it.