First consultation on July 7, 2015. Patient, female, 37 years old, pulse: string slippery fine decreasing, late string fine, inch floating string weak, Guan slippery number decreasing. The tongue is acceptable. The patient had chronic aplastic anemia for more than 10 years, treated with cyclosporine and stanozolol locally, with basic recovery of leukocytes and hemoglobin and maintenance of platelets at 30-40×109/L. In May 2014, she came to our hospital and was diagnosed with kidney yin deficiency type, given oral herbal medicine to nourish yin and tonify the kidney and fill in the marrow. In March 2015, the patient developed pruritus with no skin abnormality at first and a patchy papular rash after scratching. Treatment: Warming the kidney essence, quenching the wind and relieving itching. Recipe: Sanguisorba abdominal pulse soup with addition and subtraction, roasted turtle nail 30g first decoction, roasted tortoise shell 30g first decoction, raw dragon and peony 30g first decoction, raw groundnut 15g, ripe groundnut 15g, peony bark 10g, red and white peony 15g, angelica 15g, raw stiff silkworm 10g, cicada molasses 10g, cinnamon 6g, yellow essence 15g, cinnamon 3g, dried ginger 3g, Zhi Mu 10g, cypress 10g, Panax notoginseng powder 5g, douche, ground dragon 10g Cornu Cervi Pantotrichum 30g Agaricus 10g melted 3g Glycyrrhiza Glabra 6g 30 doses, decoction with water, one dose per day.