The best solution is to take the loss, forget it and concentrate on your next trading opportunity.
As said by someone earlier, during the time you are rescuing a position, your mental is fully dedicated to it ... and you will loose all other opportunities ... and of course, this isn't a guarantee of rescuing success.
Small SL's and even then if you think your SL is going to be hit, exit save a few pips, what I'm doing today and so far so good!!
Nothing to it, but to do it!!! Stick to the plan FOOL!!!!