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王大夫（Doctor Wang） Ask and answer The skin Department Long term decubitus decubitus Often turn over, cushion air cushion can promote healing 130 x x x 8671 readers asked: my father has been in bed for 3 months, and now he has a walnut size bedsore under his buttock. The effect is not very satisfactory. Do you have better treatment? Henan Province Peoples Hospital Department of Dermatology chief physician Li Zhenlu: bedsore, also known as pressure sores, is due to long-term compression of local tissue, continuous ischemia, hypoxia, malnutrition and cause tissue ulceration, necrosis. Therefore, the use of medication alone does not cure the bedsore completely. The most important treatment for bedsore is to relieve local pressure. It is suggested that the patients family should be surrounded by air cushion, cotton laps, pillows and other accessories to spread the pressure around the bedsore. If conditions permit, we should always help patients turn over, and insist on using warm water to scrub patients all over the body, maintain a good hygienic environment, and help to promote the healing of bedsore. At present, Tobikage with declining eyesight Retinal detachment is necessary 136 * * * 1265 readers: my eye myopia is 500 degrees. Recently, I always feel like I have dark shadows and my eyesight has declined. Whats the matter, please? The four Affiliated Hospital of Zhengzhou University ophthalmology chief physician Chen Gang: there are Tobikage sense, and this is associated with decreased visual acuity, early manifestation of retinal detachment. Patients are advised to go to the hospital for examination of the fundus and the location and extent of retinopathy early. Once a diagnosis of retinal detachment is made, the patient has to be operated on as early as possible to prevent blindness. If the patients treatment is too late, even if the operation is successful, the photoreceptor cells in the retina can not be fully restored, vision will be greatly affected. orthopaedics