My son is 9 months old. i think he has some seasional allergies. he is sneezing a lot, red watery eyes, and runny nose and all discharge is clear?

Don't assume allergy: If i blow pepper in your face, you sneeze & drain the same as those with allergy. I find babies have more congestion with scented cleaning products, perfume, smoke & other irritants than they do with animal dander or pollens. The tiny nasal passages that become very noisy with a little mucous or swelling gives many the wrong idea. Thease are not little copies of adult problems, their issues differ.