I Don't Know What This Is in Dermatitis Herpetiformis Posted December 4, 2009 · Report to Admin The purplish color and the length of time the scarring remains is a hallmark of DH. I still have some scarring on my back and neck that is there 7 years after diagnosis and the resolution of DH. For me when those bumps 'popped' the fluid inside would seem to burn the surrounding skin which would then peel. I lived with DH for almost 40 years while being blown off by doctors and getting sicker and sicker. I am glad you are able to get this under control now while your young, just don't forget to drop iodized salt and don't take a supplement with iodine. After you have been gluten-free for a while and have stopped having outbreaks you can add the iodized salt back in if you want. I just use Sea Salt which has iodine in it naturally and doesn't seem to have ever caused an issue. definately sounds to be DH, if u go to a gi specialist, how i finally got diagnosed over 5 years ago, they should know by looking at your rash. i broke out and that was my first sign that i needed to do something, all over my back and legs started out small itchy bumps that had whiteheads, thought it was wierd then got painful to touch and they burst with clear fluid, left purple bruise like spots for years after i healed the sores. iodine can make it worse.