HI..there is no such thing as seasonal psoarsis. It's genetic. But the seasons can trigger a response. Mine gets really terrible in the winter due to the dryness in the air(in and out of bldgs and home). I need to mosturize more during the winter months. In the summer I clear up great. The UV rays from the sun help me a lot and clear me up almost 50%. My body is about 90% covered and has been since birth. I have sporatic clearing up episodes tho. There is so much out there now since I was born, keep researching. I do. and I've had it for 58 out of 58 years of age. Good luck