Zinc seems to reduce the duration of cold symptoms by four days, provided you start taking it in the first 24 to 48 hrs. after symptoms appear and then keep sucking on the lozenges every couple of hours for several days.

• 在感冒症状出现后一直吸食锌剂，假使在感冒一开始头24或48小时就吸食锌的话(每两三个小时吸食一次，连续几天)，锌似乎可以缩短感冒症状时间达4天。