Left 2nd toe red spot fracture. Bruise Under the Big Toenail Treatment: Causes & Symptoms. Bruise Under the Big Toenail Treatment: Causes & Symptoms. Left 2nd toe red spot and black spot toenail. Left 2nd toe red spot and black spot toenail. Bruised Toenail: Causes & Best Treatment: Bruised Toenail: Causes & Best Treatment: « ‹ of 2 › »