Hi I can’t advise if the pain over the muscle but I’m 9dpo from having unders. I stopped the painkillers 2dpo as they made me feel ill and I wasn’t in enough pain to make it worth taking them.
I would say it’s more uncomfortable than painful, and the worst part is lack of sleep from sleeping upright .
It really hurt breathing in but this may just be as they are under the chest muscle.
I am off for 2.5 weeks for the easter hols but I have been out and about walking and seeing friends from 5dpo and actually drove yesterday at 8dpo. I could have gone back to work (I have a desk job) at 7dpo. Everyone is different but I would say a week? Hopefully someone who’s had overs will give u a better idea.