I've been taking this medicine Amlodipine Besylate 5mg (generic ...

I've been taking this medicine Amlodipine Besylate 5mg (generic for Norvasc) for two months. First my feet and ankles are swollen all the time, this only happened to me 34 years ago two days before the birth of our son. Then the itching on both arms and both legs. Then the blisters on my legs and arms. Then the numbness in my right toes. These blisters remind me of shingles my grandmother had in her 80's. I'm (55). I am allergic to anything with sulfur in it.