Our expert says:
If the symptoms are due to allergens in the air you can't really do anything to avoid it except move! Let your GP have a look at the family - if it is an allergic rhinitis causing the post nasal drip/runny noses/sneezing taking a long acting antihistamine like Loratidine at night may help, together with cortisone nosespray like Beclate preventatively during the winter. It sounds as if your husband may also have some signs of asthma so he may need to go for a lung function test too.
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