What Causes Persistent, Itchy Groin Rash Lasting 10 Days With Ulcers On The Arm And Mild Fever, And Is Elica-M Appropriate Treatment?

Good day to you I am having a rash between my thighs (groin area) and it would not go, it is common for us here in the middle east to have such cases but it usually gets better by itself within a couple of days. However, this pinkish rash has been with me for the past 10 days without any signs of healing or worsening but it is quite uncomfortable especially that my job’s nature requires me to be active and be out on sites many times. It is extremely itchy but bare-able, i have got some kind of ulcers on my left arm around the same time i got this rash. Today i am feeling little feverish as-well. I just started using elica-m but was using different creams previously and also i am still using the prickly ash powder