Hello and thank you for the question. From the pictures, it is clear you have been troubled by the itch quite a lot and scratching such that there is now pin-point bleeding under the skin. The actual cause of the rash is hard to determine from the pictures but common causes would include eczema, urticaria or other allergies. I would suggest you visit a dermatologist or doctor who should be able to assess your symptoms and rashes and give you some advice about the best management forward.
Best regards
Dr Stephanie Ho, Dermatologist
