2.What does research say?
There are no published studies attempting to link masturbation or sex with acne. Until researchers produce those studies, we'll need to take a step back. We do know that hormones and acne are linked, particularly when it comes to increased levels of androgens (male hormones) such as testosterone. So let's look at how arousal and the sex act affect hormone levels. First, it's worth mentioning that we know far more on this topic when it comes to animals such as rats and monkeys than we do about humans.1-4 Science is spotty in the area of human hormonal production and sex. According to a study in the journal Psychosomatic Medicine, "...small differences in methodology and data interpretation may easily produce contrasting results."5 A survey of the evidence bears this out.
研究
虽然没有研究表明打飞机或者做爱和青春痘有联系。 但是我们知道激素和青春痘是有联系的。 所以来探讨一下激素（ 雄激素水平（睾酮等雄性激素））和痘痘的联系。 首先值得一提的是，科学家们在这个话题上，在一些动物如老鼠和猴子的研究远远多于人类。 根据Psychosomatic Medicine 杂志上， 科学研究中，人类激素和性的研究是非常混杂的，（各家理论）。 研究中一些些非常非常细微的不同就可以轻易的造成不同。

Conclusion
We simply do not know whether masturbation or sex is related to acne, or for that matter human hormonal balance. Current research tends to point toward very small hormonal changes after arousal or sex, if any. Whether these changes are beneficial or detrimental for acne remains unknown.
结
我们还完全不知道青春痘与手淫和性是否有任何的联系。 目前的科学研究也就表示在做爱和手淫之后，荷尔蒙有细微的变化。

网站站主Dan的态度
We know that humans with high androgen levels tend to experience more severe acne symptoms. We also know that humans with higher androgen levels tend to have a higher sex drive. This may explain why some people who are more sexually active, with themselves or partners, may at times experience more acne symptoms. Whether abstinence would increase or decrease acne in such individuals is up for debate."
我们知道，与雄激素水平高，人类往往会出现更严重的痤疮症状。我们也知道，雄激素水平较高的人往往有较高的性冲动。这也许可以解释为什么有些人性欲强烈，且痘痘很严重。 不过这也只是猜想，禁欲是否对这些人有效也存在不同的意见。
Androgens 雄性激素
Acne 痘痘
Sex drive 性欲
Masturbation 打飞机

完。 我只是 搬运和翻译。 个人认为 没有联系。 不过也不能过。