 [ Symptoms ] i got 3rd degree chemical burns on my leg now it is doing something strange why  i got 3rd degree chemical burns on a big part of my right upper leg last year september with drain cleaner for the last month it  is making bumps that go away after a few days the bumps are quite big and they itch like crazy it almost feels like it is healing again why is it doing this [ Disease ] no it is not a beta blocker it is in the class of blood pressure drugs called an ace inhibitor plus a diuretic