Eyebrow tattoo...( 고민)

Is it a benefit of age?

It seems that the number of eyebrows is also decreasing.

Someone close to me keeps telling me I have few eyebrows and suggesting I get a tattoo.

This isn't something that can be fully cured in just a day or two, right?

Please let me know the precautions before and after getting a tattoo (such as avoiding washing the area, etc.).

I am a office worker.