A 35-year-old man presents with a chief complaint of purple discoloration of his toes and associated skin lesions that have ...

The rash typically consists of flat pink or red spots that appear 3 to 5 days after infection. On darker skin, it can be flesh-colored to slightly purplish-gray, with flat to slightly raised bumps.

Contact dermatitis is an itchy, red rash that’s caused by direct contact with a substance or an allergic reaction to it. You may also develop bumps or blisters that ooze or crust over.