At 2 days post-op, everything will be uncomfortable.
Things should *start* to settle down after around 2 weeks.
In some ways, recovery from the AUS surgery was almost as bad as the prostatectomy - for a while.

The device is activated in 6 weeks, but until then, it's swelling, lots of bruising & discomfort.
Horrible, but it's worth it in the end.
I went back to the surgeon after 2 weeks - even though he didn't want to see me until 6 weeks - because I was concerned about mainly the healing of the incisions.
Particularly the perineum one - it looked lumpy & gnarly. It didn't look like it was healing properly at all.
But I eventually got in to see him & he had a look & said it was fine.
Turns out he was right. By the 6 week activation mark, the lumpy incision had calmed down & healed nicely.

So I know what you mean. It looks & feels like it won't heal properly or the discomfort will never end.
But by activation time, it'll all be fine.
Been there.... done that... in June.