My son's nails are very brittle, especially his toe nails and he does not like to wear slippers at home and likes to walk on tip toes, therefore causing his nails to break/warp up. I have to cut deeper and deeper to prevent further breaking, etc. Can I apply a coat of nail strenthener polish on his toes? Right now I start to use a bandaid on it, hopefully to stop him from further damaging his toenails! Any advise?