症状的范围包括从轻度发热到使人丧失能力的高热，并伴有严重头痛、眼球后疼痛、肌肉和关节痛以及出疹。

Symptoms range from a mild fever, to incapacitating high fever, with severe headache, pain behind the eyes, muscle and joint pain, and rash.

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即使牙线让你觉得痛或者使牙龈出血了，你也不要停用。

If flossing hurts or makes your gums bleed, keep working at it.

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研究发现，类似“这可能会有点儿疼”，“你可能会觉得有些痛”之类的提示可能会起到适得其反的效果，使人们感到更加不安。

Warnings such as “this may hurt a bit” or “you might feel a little pain”can be counterproductive and actually compound feelings of discomfort, it is believed.

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