I used to get terrible ingrown hairs after laser hair removal.

我曾经获得可怕嵌毛发后激光脱毛。

youdao

My husband always has ingrown hairs or breaks out after shaving... this gave him the smoothest skin ever!

我的丈夫总是嵌毛或休息后，剃须…这给了他以往任何时候都流畅的皮肤！

youdao

And a moist blade kept in the shower, harbouring old hair and dead skin, can lead to ingrown hairs and irritation when shaving because the blade becomes blunt.

并且放在浴室的潮湿刀片上藏匿着旧头发和死皮，使用剃刀的时候会导致毛发内生，引发刺激性反应，因为刀片变钝了。

youdao

By going against the grain you can cause razor burn and ingrown hairs.

WSJ: Razor Sharp | The Return of the Classic Wet Shave