My Husband Has A Big Toe That Was Injured During

My husband has a big toe that was injured during working around the house. He can't recall how but the nail is causing him pain intermittently mainly at night. He saw a clinician and was advised to soak his feet in dial antibacterial soap & water for 20 minutes, dry & apply Iodine, let dry & place a small piece of pure cotton behind his nail as the corner appears ingrown. Deep in the center of the nail you can see a dark bruised area. But, the pain is mainly in the night. Advil is not helping. He also elevated his foot above his heart but that only helped for minutes. What do you recommend? Thank you