Dry cough!

Changing weather makes my health very vulnerable. In almost a week now, I've noticed our weather is unstable, during day time it is very sunny but later in the afternoon rains falls as if it will never end. Wahhhh, it makes me sick. For almost 5 days now, I am not feeling well because I am suffering from dry cough and my allergy really kills my senses. Imagine, nowadays I am taking 5 different kinds of medicines and am really out of budget! Hope I will be fine soon....