Did you hold a bar at all when you were treated I am not sure what you mean by this. I just lie on a couch and the beautician uses a small needle she inserts in each hair.
As you may imagine, over 40 years I have been treated by a number of diferent beautician and the procedure has always been the same. It can be a bit painful, which is why I have only ever have 10 minute sessions.
I sometimes have a slight redness after treatment if the beautician has been working intensively in one area, but nowadays she is mainly treating dark hairs scattered across my lower face and throat from ear to ear, so there is little or no redness as the hairs are so scattered
When I started treatment I was working and would have my treatment in my lunch hour, then it was intensive treatment of my moustache, but the beatician always put a cooling lotion on my face afterwards and by the time I got back to work 10-15 minutes after the treatment was finished, any redness was not noticeable, although the intensive area of treatment might feel a bit sore for the rest of the day.
People's experience will vary depending on how much of a problem they have. I am definitely up at the extreme end and would have been a bearded lady without electrolysis.