The thing is that we did the damage many years ago.
I had a nasty sunburn to my nose in the south of France when I was 16, so 50+ years ago. It blistered, cracked, peeled. The French lads my friend and I were hoping to impress thought it was hilarious 🙄
Over the years I had what I thought was a spot on the same place, which never came to anything but never quite healed. In those days I don't think there was the publicity about skin cancer that there is now.
A few years ago I was referred to a dermatologist about another matter, which was nothing of note, but he spotted the area on my nose and prescribed Efudix cream, as others have mentioned.
It's basically a chemotherapy cream, penetrates the area and burns off any suspicious cells. I had to apply it for four weeks.
My skin was extremely red, cracked and sore through this but the thing that provided the most relief was simple Vaseline. I googled the treatment and this was what other people had recommended.
My nose healed up nicely and I've had no further problems.
Like others, my dermatologist made me promise to wear factor 50 suncream on my face, every day. So I do.
It makes me cringe to see people lying out in the full sun, their faces turned up and only their eyelids protecting their eyes. So dangerous for their skin, and their eyesight as well ☹️