Red eyes after crying can be quickly reduced by applying ice towels to the eyes and applying eye drops externally. Eyes cry red, usually due to the conjunctiva stimulation caused by congestion, so want to quickly eliminate red, not with the hand repeatedly rubbing the eyes, and at this time if the frequent rubbing of the eyes easy to cause infection and cause eye inflammation. If you want to quickly fade the red, you can use a clean ice towel to apply cold compresses to the eyes, so that the conjunctival capillary contraction and relieve the redness and swelling of the eyes. If necessary, you can use topical eye drops to quickly relieve redness in a short period of time, such as over-the-counter nafamivir eye drops, the principle is that the drug can quickly shrink the capillaries of the conjunctiva in a short period of time to eliminate redness in the eyes. If you need to use drugs, it is recommended to use under the guidance of a doctor to avoid adverse consequences.