Eye congestion is to take cold compresses or hot compresses to promote receding, mainly related to the causes of eye congestion: First, allergic conjunctivitis triggered by eye congestion, the need to use ice towels cold compresses to promote congestion receding, cold compresses can reduce the eye surface temperature, so that vasoconstriction, play a role in reducing congestion, reduce the sensitivity of the eye nerve, relieve eye itching is helpful, to have conjunctival edema, cold compresses help edema The cold compress helps the edema to subside. Secondly, eye congestion caused by visual fatigue, need to promote decompression through hot compresses, hot compresses can improve blood circulation in the ciliary muscle, retina and other tissues inside the eye to relieve visual fatigue and completely eliminate eye congestion. Thirdly, congestion caused by conjunctivitis needs to be promoted by hot compresses to subside. Hot compresses can enhance the blood flow of conjunctival tissue, so that more antibodies and leukocytes can reach the conjunctival tissue to participate in the anti-infective effect, enhance the bactericidal activity of leukocytes, accelerate the healing of conjunctivitis, and completely eliminate eye congestion.