Can't find my original thread on this but I did promise to report back for those who were interested!
Had my first treatment today for backs of arms - felt like being pricked with quite a large pin, would say just tolerable. Probably quite a sensitive area anyway! Apparently they can put local anaesthetic cream on but I wasn't offered any!
Left feeling slightly sore afterwards - like moderate sunburn. 8 hours later, soreness has gone but my skin is very red - it looks sunburnt.
The nurse said it could stay like this for a few days, and that red was good as it meant the skin was trying to heal, and that I might not notice any difference until after the 3rd session.
Got another 2-3 sessions to go....