Yes, it is possible that pink eye is gone and then comes back. As we know that pink eye is contagious. And they can be easily passed back and forth between your eyes and others. Of course, there are many measures you can take to solve the situation. For example, 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. Also, you must wash your hands and sanitize them constantly. Otherwise, it will be easy to be infected. But if the situation becomes serious, maybe you should go and see a doctor as soon as possible.
Yes. it is possible to that pink eyes go away and come back. In fact, pink eyes is a type of eye infection. After you cure it. You may also get pink eyes if you get eye infection again in latter life. So, in your daily life, you shall pay attention to the clean of your hands and sanitize them constantly in order to avoid causing pink eyes again.
Yes, it could come back if you do not have good habits for taking care of your eyes. As we all know, pink eyes are caused by infection and they are contiguous. Hence, the risk of getting pink eye again is still existed. In general, you should avoid touching or rubbing your eyes, especially after touching something else. Be careful when applying contact lenses as well if you need them. And you should wash your hands with soap and warm water before touching your eyes, and using a towel instead of hands to wipe away discharge from eyes. Remember do not share pillowcases, towels and blankets with others.
Yeah, actually the pink eyes you get is not cured fully. That is why you feel hat you get it again. After four days protection of eyes and treatment, your original pink eyes get the release or become the symptom of recovery. At this time, you should continue to do the treatment, using the eye drops continuously. And the eyes then are weak at the immune system which may be infected again after contacting with the dust, sand and other dirty things. Thus, you'd better keep doing the treatment.