Me, too, but in the big arm, I was shocked at the time, and I didn't know what to think later. I just pulled it out, and it's fine. It has been several months now, and there is no problem.

In fact, I think it may be that a sweat pore absorbs too much nutrition, so it suddenly grows out, which is similar to fertilizing flowers. When there is too much nutrition, the flowers will be too dark and too big, but once the nutrition stops, they will return to normal.

More nutrition, I think it's a good thing, don't worry ~!