Waterbump or poison ivy?

I get these things that look like waterbumps every now and then. The first time I had one was 2 years ago when I was in TX. Thats how I found out I had poison oak.This time I got it when I was going to visit family in central california and I was wearing sandals the whole time. It always starts off itchy and red and then progresses to being a bump later on. So I'm not sure if it's just a waterbump or an allergic reaction to poison oak or poison ivy.

Waterbump or poison ivy?
avoid contact with polant life until you learn to identify poison oak, ivy and sumac. Ask people wherever you go to show you any plants they know to be a problem. Pictures of the plants will help, but seeing them is best.
Reply:maybe, since u travel a lot, ur skin is allergic to the different air around u.
Reply:I think you would know if you walked in poision ivy. Leaves of three,let it be! Many people are allergic to chemicals used in yards and foliage. Could be bites of some kind, I know someone who is allergic to mosquito bites. Starts off itchy and red and turns into a bump.
Reply:Its probably just smallpox.
Reply:I would say that it is poison Ivy. Probably like a contact dermatitis. Are you getting these "bumps" in the same place each time. Try an antihistamine, it helps to dry these up.
Reply:YOU SEEM TO HAVE WHAT MY ALLERGIST SAYS ARE ALLERGIE BUMPS. NO BIGGIE YOU JUST NEED TO WEAR BETTER SHOES, SOCKS PUT SOME POWDER ON THEM AND KEEP FEET HEALTHY AND COOL.AND OR IT I IS A REACTION TO WHAT YOUR SKIN COMES IN CONTACT WITH. BUT BE CAREFUL WITH THE IVY . ITS BECOME MORE POTENT.
Reply:It is probably a chigger bite. You find them in the south in the summer time. It starts with a itchy red spot, it will get a watery center. Gradually will heal. You can stop the itching with laundry bleach on just the spot. This will kill the chigger. Apply with q-tip when you first find the spot.
Reply:could be a form of a fungus..have doctor look at