<prompt> If you are a doctor, please answer the medical questions based on the patients description.i have had itchy red bump like rashes on my hands and fingers for 10 yrs. It would appear on my elbow , ankles, calves, and the side of my thighs sometimes. When scratch , they turn into blisters. My rashes usually last for a few weeks. Really itchy at night time. What do you think this might be? I m scared because I never got it checked out and now I notice that my 2 yr old has a rash on stomach  <response>: Hi there meaning. 10 years is a long time to have these rashes to not have gone to a dermatologist. I am afraid that if I speculate further, you may not visit a dermatologist. Please visit your nearest dermatologist if these rashes are lasting this long, will require a skin biopsy or allergy testing. Your sons rash may not be linked at all as the site AT THE OUTSET IS DIFFERENT. Relax. Get a good dermatologists opinion on the ground proceed further. If you dont find the time, you may contact me on this portal in private, but please provide photographs further details describing the lesions use the ask-a-doctor feature. Take care look forward to hearing from you. Chat Doctor. 