Well, yes, it can help pink eyes. Nowadays, pink eye is very normal for many people. First, you should know that pink eye is caused by the bacteria, irritants, even allergies. Because pink eye is contagious, they can be easily passed back and forth between your eyes and others. According to some experts, for treatments, erythromycin can be used to treat pink eyes. By using it, it can just relieve the redness, even the bloodshot eyes will disappear. Also, you need to use the drops as directed you need to make sure the bottles tip is not touching your eye to not be infected. By the way, you can put some ice on your eyes and change it frequently. So just have a try.