dislocated shoulder

Hey in high school I dislocated my shoulder in wrestling I quit for the year, but the next year it came out again. Now three years later I play rugby, my shoulder pops out sometimes and it still hurts. I want to continue to play rugby and I don’t want to have to get surgery. Is there some kind of work out that I can do to help strenghthen it? or a kind of brace that I can wear? and maybe some vitamins or supplament that will strenghthen those tendeons. Thanks David