Suggest Remedies For A Loose And Sore Toe Nail

I recently competed in a long distance walking event. My toe nail on my big toe feels as though it is detached from the base where the skin acutually is over the nail. It sore and blistered and if I apply pressure I can feel the nail move up and down under the skin. Do I need to have the nail removed or will it just grow out in it's own time?