I've got an itchy rash all over my chest.
If you stay in the sun too long you'll get (a) heat rash.
The allergic reaction caused a red rash to spread across her skin.
Ignoring safety precautions often leads to a rash decision with unforeseen consequences.
The doctor prescribed a soothing cream to alleviate the discomfort of the rash.
Exposure to certain plants can result in a rash for individuals with sensitive skin.