Lower Limb or Foot Skin Conditions – Having a rash on your foot can be alarming and uncomfortable, especially when you aren’t sure what it is or what caused it. Causes of a foot rash can range from an infection to irritation to an allergic reaction. And different kinds of rashes often have similar characteristics. When you notice a rash, it’s important that you get to the bottom of what type it is so you can treat it effectively. If the rash is new, it’s best to consult with a healthcare provider for a proper diagnosis. You may be able to safely treat yourself (using your doctor-recommended method) if a harmless rash comes back. However, if you’re unsure of what you have or if your rash worsens or persists, see your podiatrist