I have toenail fungus on both big toes. Also, the both nail are a little loose. What should I do? Finally, I have space on the side of each nail

A foot doc. Will cut as much of the fungus away as they can. They can then offer you different treatments to get rid if the fungus. Oral lamisil (terbinafine) has the best success rate. Lasers are expensive, and if they don't work you may be upset that you spent money.