Most Helpful Girl
Bleaching will do severe damage.
If you're going to get your hair bleached, get it done professionally to minimize the damage.
If you're stuck on the idea of bleaching, I suggest you go in to a salon a week prior to bleaching your hair and ask for an ApHogee 2 step protein treatment.
And once a week, I recommend you do the ApHogee 2 minute keratin reconstructor treatment. It's simple, you just use it after shampooing your hair once a week and leave it in for 2 minutes. You can purchase it at Sally's Beauty Supply or online.
And try using a sulfate free shampoo and conditioner to avoid more damage and cause sulfates can cause your color to fade :|
There's nothing you can do once the hair is damaged other than take care of it and wait for new hair to grow.