Going barefoot with plantar fasciitis?
One thing that the majority of people with plantar fasciitis often comment on is that going barefoot is way more painful than wearing supportive shoes. Based on that it would be good advice not to spend too much time barefoot if you have plantar fasciitis. The reason for that is that when barefoot the loads or forces on the plantar fascia are greater, so the strain on the damaged tissues are going to be more painful. Those loads are reduced when wearing shoes. Shoes also provide some cushioning under the heel which may also be able to give some pain relief.
This was not always the case. It was not long ago there was a brief barefoot running fad in which shoes were blamed by so many gurus as being the source of all evil. There was some pretty strong advice from those who did not have plantar fasciitis and had no medical training that you should go barefoot if you have foot problems. They certainly were ridiculed for that advice by those with painful plantar fasciitis as they knew just how much worse they were when barefoot! There were lots of extraordinary claims being made about the science behind barefoot, when in reality the science was saying no such thing. The fad soon when away as it failed to deliver on the alleged made up benefit.
By all means, if you feel better going barefoot, then do it. If it hurts, then get back into the supportive and cushioned shoes until things settle down and you can go barefoot without any problems.