I have received your picture. Thanks for uploading it. Sorry it took so long to get back to you....my middle daughter and two grandchildren are in town and we have been making snowmen in the front yard and sliding down the hill......It's fun to be 3 and 5 :)
It is difficult to tell exactly what may be causing this rash as the features are not specific enough. My first thought is a contact dermatitis or possibly a autoimmune reaction secondary to a fungal infection.
At this point the only way for you to get to the bottom of what is causing this rash, especially since it has been present for such a long time, is to have a dermatologist look at it in person. After examining you the Doctor may want to do specialized testing such as a skin scraping or even a full thickness biopsy.
If you don't want to see a dermatologist you could try a short course of 1% hydrocortosone cream (available over the counter) twice a day and see if things improve.
Does this make sense to you?
Don't forget to mash the positive feedback button for me...the one labeled "excellent" is the most fun to push by far ;)
It's safe for you to press the positive feedback button now if you so desire. And, never fear, even after you press that button I'll still be right here to continue helping you, but, as I do work for tips, I want to make sure you are happy before rating me.