If you have been using the clotrimazole for this length of time then it is possible that you do not have a fungal infection, but that this is a type of contact or atopic eczema. Use hydrocortisone 1% cream twice daily for one week. This should improve the appearance of the rash. If it does not go completely then you will have to see your doctor for a stronger topical steroid cream, or even possibly send off some scrapings to a lab to confirm diagnosis.
In the meantime avoid chemicals, perfumed soaps and detergents.
There are many types of eczema, not always inherited and topical irritation with jewellary/detergents is very common. Hydrocortisone is good at minor irritations but if the problem is very severe then stronger steroids are required.
Try the hydrocortisone for a week then review.