is it worse when you are traveling?

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i just travelled to Shan Hai ,and i have had a cold in there, not very serious,but can't help to stop the cough . even at night. i had cough for two weeks. that really a pain things for me. just becasue the invironment that i had live. the voice from the road and the man who always smoke. but i can't deal this things just becasue i am not in my home. so when you are travelling out side please take good care of yourself. best wish.