Redness can usually be eradicated with laser treatment. Redness, also called capillary dilatation, is a persistent dilatation of small blood vessels in the skin’s mucous membranes, forming red or purplish-red spots, dots, and lines of damage. There are two types of redness formation: simple capillary dilatation and secondary capillary dilatation, which are treated in slightly different ways. At present, the main method to get rid of the red blood vessels is to use laser treatment. Whether it is simple vasodilatation or secondary vasodilatation, laser treatment or pulsed light treatment is used, which generally adopts a specific wavelength to irradiate the skin, so as to make the dilated capillaries shriveled, thinned, and shallowed, to increase the elasticity of the capillaries, and to eradicate the capillaries dilatation. But secondary capillary dilatation in the laser treatment at the same time, to actively treat its primary disease, because only the primary disease control, capillary dilatation will not aggravate, laser treatment will have a stable effect. In daily life, it is necessary to carry out heat preservation, sun protection, hydration, and eat less spicy and stimulating food to exempt the abnormal expansion of capillaries, in order to reduce the problems of skin elasticity deterioration, facial redness and facial skin pigmentation, dryness and so on. It is recommended that patients go to the hospital in time to avoid delays.