As long as you don't get worse, I would give the Benadryl some time. Like Serge said, sometimes you need a week to get rid of this. Continue dosing the Benadryl throughout the week. DNP is serious, and your body may need some time to recover.
Also, Serge mentioned that you need to up your antioxidants.
I remember seeing a post with someone's pic on here. They took DNP and got a rash like you were speaking of. Do a search for DNP sides and such. If you find it, pm the guy for info.
Edited....Here is the thread to Cornellius' post. He has a pic of his rash. Is this like yours?
I know my cortisone shot remedy wasn't popular, but it works. You can go to a doctor and explain to him that you are having an allergic reaction to something. Ask him for a shot. The cortisone will boost your body's response time to the reaction. He can also give you a more potent shot of Benadryl too.
Keep dosing the Benadryl, give it some time. Hopefully that guy will pm you. If it really bothers you or interferes with your work, life etc- go to the doc and get a shot. I am sure it will go away soon.
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