I had it done, and the clinic gave me eye ointment, cotton swabs, and saline solution. This saline solution is kind of large for a single-use one, and the pharmacy told me that once I open it, I should use it and throw it away within a day. But I need to disinfect with it on a cotton swab morning and evening. Would it be okay to keep this amount aside and use it? Also, when applying the eye ointment, they said to spread it very thinly. Am I supposed to apply it on the double eyelid line too?