There are other factors which can worsen an allergic condition.
Stress is one of the big ones. Anyone with allergies can tell you that when they are under stress of any kind, mental, emotional, physical, it can and will worsen symptoms.
Absolutely. And Kids are under a lot of stress these days! Between hours of homework (what are they doing in school again?), a cacophany of noise, music, TV, etc, going on all the time, and the social issues, like kindergarden sex ed., etc. going on these days, I’m sure that stress is a huge factor. Great observation, I forgot how much stress is a factor in all infirmities, including allergic reactions.