4 (also monitor lizard) A large tropical Old World lizard with a long neck, narrow head, forked tongue, strong claws, and a short body. Monitors were formerly believed to give warning of crocodiles.Called goanna in Australia. (also monitor lizard) A large tropical Old World lizard with a long neck, narrow head, forked tongue, strong claws, and a short body. Monitors were formerly believed to give warning of crocodiles.
The most effective way to prevent black toenails is to run in shoes that fit properly. You should have a thumbnails width room between your big toe and the front of your shoe while standing, not sitting. You should also wear moisture thin, moisture wicking socks to prevent increased heat build-up.
Treatments. 1  Wear shoes that are wide and deep in the toe box so they do not put pressure on your toes and metatarsals. Avoid wearing high heels because they cause increased pressure on the ball of your foot (forefoot). 2  Metatarsal pads: These help to lift and separate the metatarsal heads to take pressure off of the nerve.