I had the full Nissen fundoplication surgery. Precautions before? I'm not sure what you mean, but I will say that before the surgery I was on 40mg Protonix twice a day, with 300mg Raniitidine at bedtime. The reason I had the surgery was for uncontrollable asthma that was caused by reflux.
I had a lung infection before the surgery that didn't resolve with antibiotics. Because of that I was on high doses of steroids, making my internal tissue very fragile. My surgeon added a few extra stitches to ensure that things held. Good thing, because I spent the recovery period coughing severely.
Even with the coughing, I recovered well, and with time my lungs responded very positively.
I was fortunate that I had a surgeon who trusted me to make good eating choices. At Day 5 when I saw him, he turned me loose to eat anything that could be chewed to a liquid. It was a great gift. No more pureed or liquid food, which made the recovery period much more enjoyable.
I was well-behaved, and ate very carefully--taking small bites and chewing thoroughly. I never had a problem caused by that eating protocol.
The thing that worked best for me was my surrender to the recovery. I made up my mind to patiently follow whatever path my recovery took, and accept whatever changes occurred. When you're not struggling against what is, it makes it a lot easier to accept the way things progress.
All in all, my recovery was much, much easier that I ever dreamed it would be.
Hope that is helpful!