In which case I'm sure you're au fait with conditions such as bipolar disorder (one that many people in the field have suggested Gazza most likely suffers from). A condition caused by a chemical imbalance that (as far as current knowledge is concerned) can't be cured, only suppressed.
Obviously it can be treated with Lithium, but if you've ever known anyone taking it, you'll know it's just as bad a situation as not taking it. Some epilepsy medications seem to work, but not always and rarely in the most extreme cases. You'll hopefully also know how the best treatment of such a condition is through therapy (cognitive behaviour, usually), but that its efficacy is almost entirely down to the intelligence (emotional and traditional) of the patient and that of their close friends/family.
As much as I love Gazza, he's not the brightest type - neither are his friends and family from what little I've seen of them. In your professional opinion, what hope do you think he has of pre-emptively recognising and avoiding high or low episodes? I've seen a lot of this myself and I don't fancy his chances one bit.