Do you get that too?
Before I had mono, no.
After I had mono, yes to an extent.
If I have anything less than SPF30 on, I can only be outside for 10 minutes in direct sunlight.
SPF 30 or higher (had 50 once upon a time, it does not keep too well), and I can extend that to 15 minutes.
But I patch burn.
One reason why I don't wear shorts.