Suggest Remedies For A Blister On The Glans

Hello, my wife and I were having intercourse. It appears as though afterwards I acquired a blister on the end of my penis. I had not checked myself for a day or two as I didnt notice it at first. I noticed it and it freaked me out. I wondered if there was a remedy for this problem when we have intercourse we use lubrication it appears as though my forsekin has subsequently got a lot tighter also and is hard to pull down over the dome. I presume these two things are linked but was wanting to know is there anything to be done to cure the problem.