I have some bumpy red spots on both my wrists and other parts of my body for a while now. they are sometimes itchy. what could it be?

Allergies: Your symptoms sound like it might represent an allergic dermatitis. It may be from a personal care product, soap, perfume, laundry detergent, fabric softener, or even a food you ate recently. It the rash is really bothersome, see your physician for diagnosis and treatment.

Need to see to ID.: These lesions would likely need to be examined and more history obtained to be able to provide you with useful input about the diagnosis or possible treatment.