After taking a bath, the eyes are all red. What's going on?

After taking a bath, the eyes are all bloodshot. There are two situations to consider: first, if the bath solution is accidentally put into the eyes during bathing, it will cause foreign bodies in the eyes. At this time, it will cause reflective tears, redness and foreign body sensation in the eyes. At this time, it is necessary to wash the eyes with a lot of water and clean the bath solution in the eyes. The symptoms of red eyes and foreign body sensation will gradually subside; Second, although there is no foreign body in the eye, due to the relatively hot water in the bath, it will cause local conjunctival vasodilation, resulting in more blood vessels. This situation does not require special treatment. When about 30 minutes after bathing, redness and more blood vessels can disappear.