Rash on arm tiny little raised blisters not helped by hydrocortisone canesten?

If you have a rash on your arm with tiny, raised blisters that is not responding to hydrocortisone or Canesten, it's important to see a healthcare professional for a proper diagnosis and treatment plan. While Canesten can treat certain fungal infections like athlete's foot and jock itch, and hydrocortisone may be helpful for some types of allergic reactions, they may not be the most effective treatment for your specific rash. A healthcare professional can examine the rash, determine its cause, and provide the appropriate treatment.

It's always best to seek medical advice if the rash doesn't go away or is accompanied by other symptoms, such as pain, fever, or itching.