Black eyes when bathing is due to the expansion of capillaries around the hot shower, resulting in the distribution of blood flow throughout the body in the skin and subcutaneous tissue within the capillary network, which in turn leads to a reduction in the blood flow back to the brain and the heart, the lack of blood supply to the brain will be transient hypoxia, black eyes and so on. At this time, we must stop bathing, quickly dry the body of wet water, put on the clothes, lie flat on the bed to rest, at the same time, for patients with gasping and suffocating, the conditions at home can be oxygen therapy, in most cases after lying down and resting for ten minutes or so, black eyes and gasping symptoms will be reduced and relieved.