One week back I got three blisters on my chest which I popped thinking it is just a sweat/friction blisters due to a rough t-shirt I wore on that day. Next day multiple blisters showed up on chest where skin folds when I sit. which are very painful and itchy. Again I popped few of them and applied iodine ointment thinking it will heal. But even after a week still they are painful. Please suggest how to get rid of this.