What Is The Medication For Red Bumps On The Arms With Itching After Camping?

i went camping last week from wed - sun and thought i had a lot of mosquito bites bt when felt a row of them on my arm i asked my mom and she asked if i had poison oak. it made sence since there was a lot of it around where i was staying so i started using calamine, aveeno anti itch and taking benadryl. i think i see atleast 1-4 new ones everyday ive washed all my clothes everything. these bumbs r like bites not blisters. they do not oooze and my left arm is in actual pain on the inside from my elbow to my hand. it burns and itches and hurts. if its not poison oak what is it?