Track pain meds both at the hospital and at home. It may seem easy to remember you took something at a particular time and can take more pain medication at a specific time, but the patient will become confused and forget. Especially when on narcotics.
Tracking everything is important and this was mentioned in another tip. However, specifically for medications. Pain medications dull our senses, even we don’t want to admit it. For some reason, I’ve learned that pain medications inhibit our ability to admit that we’re confused! So WRITE IT DOWN!
One thing that I did once I was feeling better, and still keep up to date, is create a spreadsheet on my computer that tracks everything that I take. Supplements, vitamins, and all prescriptions. I have columns for morning, lunch, dinner and bedtime.