Hey, did you ever find an answer to this? I cant believe I have EXACTLY the same problem. Even down to as far as I was diagnosed with NSU, which was later found to be Chlamydia, I was given antibiotics which didnt work the first time, then given stronger ones which cleared the chlamydia.
Now I have the cracked wrilked skin you describe, I also had one red mark which dissapeared a while ago and havent had any since. Its pretty annoying. I went to my GP and the advised me to use Aqueous BP cream, which I have been but it doesnt seem to have done anything.
I am just wondering if you have found any answers before I return to the dos? As like you I dont what to keep pestering them, Ive been to the GUM twice and give up on them and went to the GP and so far none have seemed to be able to sort the problem...
Thanks