Mine seems worse in the winter as well; however, it's a year round problem with me.
I don't wear a hat or scarf on my head. So that's not it.
I've been told by doctors that it's worse in the cold because we wear winter hats, which traps in heat and moisture and aggrevates the yeast that is thought to probably cause SD. 🤷
It seems as though the dermatitis has really kicked up because I'm itching more right now and I can see more of it along my hair line.
The dry cold weather makes mine worse!