AnswerAny detergent that is dye free or "free" is good for allergies. I know that Zero has one that is safe for allergies. Usually ones for allergies come in a white bottle.
AnswerInstalling shower plumbing can be very difficult if you dont have past experience, and could potentially end up costing alot more money in the end. I would suggest hiring a proffesional.
AnswerIf you are intrested in going to a career training insititute, you can start by going online to the "ATI Career Training Center" website. They have a guide to help you choose the right institute you want.