###Human: What can be done for cough that occur only during particular months of the year? ###Assistant: Hi. Your cough seems related to the weather which gets worse during the winter season. Which city do you live in since some dry arid or polluted cities have high levels of toxins? And what is your BMI (body mass index) or weight and height? That may also cause gastric irritation if weight is above normal. This seems to be a kind of allergic bronchitis that is healed by increasing immunity. Lemon and ginger are the best natural ways to improve immunity or take a Vitamin C supplement. The cough will go with regular care and warm water treatment. Take care.