Is this herpes or skin cancer? ?

I got this on my shoulder a few days ago and i don’t know what it is or means. I used perfume the other day and it kinda sting but not that much. It doesn’t itch or anything. I’m kinda worried. 

Tarkarri2021-04-03T13:34:51Z

Either should be checked by your doctor so make an appointment as soon as practicable.

Anonymous2021-04-03T08:03:00Z

To answer the first person’s comment. No it doesn’t itch, it hasn’t gotten bigger, it’s flat. I went to the beach a few weeks ago but I used sunblock. Idk if it’s from that. It just looks ugly and I’ve never had that before so that’s why I’m concerned 

geezer2021-04-03T07:55:19Z

If you are ''worried'' about it then go and see your doctor
and if he/she is concerned about it you will be sent for a biopsy.
We can't tell you .. from a photo.
Does it itch ?
Is it raised or flat ?
Is that how big it's got in just a couple of days ?
It probably is nothing to worry about
.. but if it is cancer the earlier you treat it the better.