Proprobably. This is probably eczema. Please see your dermatologist for evaluation and to discuss treatment options.
What are those common lil white or red bumps most ppl get on arms (can look like tiny pimple)? What causes them?
Possible. If they are on the back of your upper arm mostly and kind of firm they might be keratosis pilaris. It's a plugged hair follicle filled with keratin which is made by the skin. You can get rid of them by using a mild exfoliating "puff" when you shower followed by some retin a (tretinoin) type cream (prescription) not sure if this is what you mean. Read more...