Years ago (work) I endured some pretty stressful times. Due to this I had issues with cysts forming at the base of my eyelash follicles. These would appear as small lumps which were fairly painful. At the time I was with BUPA and got myself checked out. They said they could operate.
Went into the theatre and was given 3 injections around the eye (that didn't feel too great I tell you). Wait for the numbness to comes and away the surgeon goes..... With a SCALPEL!!!
So he's scraping away inside my eye lids to remove these cysts. Whilst he's mucking around taking twice as long as expected, the pain relief was wearing off. So what I couldn't feel earlier is now somewhat painful. I express my concerns and he's only got a few more to do. 10 minutes later I'm in agony!! The nurse came over and said "hold my hand if it's painfull" which I replied "no I'm okay I'll be fine" clearly she knew I wasn't happy about the pain and held my hand. Let's just say her hand was BLUE as I'd gripped her hand so hard.
Once it was over the doc said sorry for the pain, which I could have clocked him one. He said I would be okay to go out that evening but the pain was horrendous.
The best way I can describe the pain, imagine getting sharp stones and scraping them on your eyes and under your eyelids.
He said I could be prone to them again in the future but thankfully they've never returned.