I have these strange bumps on my elbows and my whole body aches and itches, especially in on my feet and hands. I also have a st

My feet hurt and my face, ears, hands, and around my eyes are swollen. It is unbareable to not itch! What really scares me are the hives or rashes on my elbow....I think I might have had an allergic reaction. Should I go to a doctor?