Yes, the weather can make a difference. Only in severity though - I find an allergic bun is allergic all year round
However, sneezing may be a sign of something else, as you probably know. The fact you say he has snuffles - is there discharge, and is it ever white?
Sometimes a flare up of their bacterial infection can also cause repeated sneezing, so bear that in mind. Allergies and snuffles can mimic one another![]()
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