How would you know after 4 days that you have no allergic reaction?
I didn't break out in hives until week 3-4 during my 2017 nationals prep. Started at 100mg and got up to 150mg. The plan was a low dosed cycle with a longer duration. Haven't touched it since nor would I ever as I personally find clen and T3 much easier to handle.
I think my allergies were abnormally bad as well. Even after starting anti-histamine and dropping the DNP it took over a week for the hives to disappear. Online I've heard of people not even dropping DNP but adding benadryl and the hives/rash disappear right away... I'm likely part of the unlucky few but worth sharing my experience