The manual razor is shaving the upper lip. How to scrape so as not to scratch the skin easily?

You can buy that kind of double-edged cutter head, which is safer than the single-edged one and won't scratch your skin. The third floor is better, but the price is more expensive.

When shaving, first wet the beard, rinse the razor blade clean, then shut up, pull down the razor from top to bottom, move it from inside to outside one by one, and shave gradually. Then flatten the razor from the inside out, that is, shave the remaining beard twice.

Don't shave when the beard grows, it is easy to pull and it hurts. Shaving every day is easy.