Illness and Guttate Psoriasis

My guttate psoriasis started not too long after a store throat which I would get all the time being a teacher. Now I'm noticing Everytime I am feeling under the weather the spots are significantly more itchy and there are way more of them. I do not want to go on medication for this daily. What can I do to prevent this other than live in a bubble?? I am also wondering if there's a connection between the amount of time in a tanning bed and whether it helps vs causes a breakout. Anyo.e else notice this?