Erythroderma, also called capillary dilation, is a persistent dilation of small blood vessels on the skin mucosa, forming red or purplish-red spots, dots, or lines of damage, mostly without conscious symptoms, occasionally with a burning or tingling sensation. Primary erythema is mostly hereditary, while secondary erythema can be caused by high temperature and heat stimulation, especially exogenous injury, and long-term use of corticosteroids is the most common cause of erythema. The treatment of erythema includes the treatment of exogenous, endogenous and causative factors. 1, general treatment: you can use some of the chemically added anti-sensitive type of skin care products to condition, repair the skin comprehensively and change the symptoms of thin skin stratum corneum and atrophy of the stratum corneum; 2, physical therapy: such as laser therapy, pulsed light therapy. The use of specific wavelengths on the skin irradiation, the use of hemoglobin can absorb light energy, so that the expansion of capillaries shrink, thinning, shallow, increase capillary elasticity, completely change the facial capillary dilation and capillary elasticity reduced; 3, live cell therapy: will have biological activity of the protein repair skin epidermal layer of cells, to the epidermal layer of cells to provide nutrition, reconstruction of dense stratum corneum defense system. Change skin sensitivity, improve skin immunity, so as to achieve the effect of treating or improving red blood cells. In daily life, insulation, sun protection and hydration are needed to eliminate abnormal expansion of capillaries in order to reduce skin elasticity deterioration, facial redness and facial skin pigmentation, dryness and other problems. It can also be conditioned with some of the anti-sensitive type skin care products with added chemical ingredients, which can help reduce vascular permeability, effectively improve sensitive skin and stabilize the skin condition to achieve a comprehensive repair.