Ngứa không rõ nguyên nhân, do đâu?
(SK&ĐS) - Tôi năm nay ngoài 60 tuổi, bị bệnh ngứa da từ lâu. Trước đây chỉ dùng vài loại thuốc nam là khỏi, nhưng nay các loại thuốc đều vô hiệu. Tôi bị ngứa chủ yếu ở hai chân và tay, đôi khi ở lưng, phải dùng vật cứng nhám để gãi. Mong được bác sĩ tư vấn.
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