It is thought that you shouldn't take traditional Chinese medicine in summer, for it may make you suffering from excessive internal heat. This view is very unilateral, and actually some ingredients' hot property may lead to excessive internal heat in summer. But this is not suitable for BIKE Granule, for there aren't any hot ingredients in BIKE's formula, and also the curative effect will be better. You should drink more water properly in summer for you may easily suffer from excessive internal heat in such hot weather.