A higher temperature in the bedrooms was significantly associated with rhinitis, atopic dermatitis, severity of asthma and reactivity on other allergens (other than domestic mites) (p ≤ 0.00005 in all cases) whereas their influence on higher IgE levels for D. pteronyssinus and D. farinae was statistically nonsignificant (p > 0.1 in both cases). This evidence concerns the gene IGHE and rhinitis.