You can wear it after the wound heals. When wearing, it is recommended to use some scar stickers in the elastic sleeve to strengthen the functional exercise of the hands. According to your description, if you have blisters on your hands all the time, you can exercise properly. If there are more and more blisters, or the blisters are getting bigger and bigger, it is recommended to stop using the elastic sleeve for a period of time, and then use it after the blisters are basically healed. If you have scars on the back of your hand, you should strengthen functional exercise, mainly by making fists and keeping records like keeping a diary every day. Scar treatment is expensive, so be happy. I wish you a speedy recovery.