I’ve Had Allergies for Several Years, How to Treat It?

I’ve had a history of allergies for several years. My child is 9 years old this year. Lately, I’ve noticed that he sneezes and blows his nose as soon as he wakes up in the morning. When I asked him, he said it happens every morning. After morning exercises at school, it gradually gets better. I compared the symptoms, so I guess it should also be allergies. Could it be that I’ve passed it on to him?
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