My father age is 75+ and he is a cerebral stroke patient. He is fine all through the season except winter and rainy season. In every winter and rainy season he is affected to swelling of skin and itching problem and doctor are saying that he is affected to bacterial diseases and they provide medicine and he gets alright. My question is that is there any natural way to prevent this diseases. I don't want any medicine to prevent it. Please help me I am in stress.