Brave Bird Cosmetic Inking

Eyebrows: redness surrounding tattoo, and a darker appearance to the pigment (redness will be gone within an hour or two).
Lips: swelling can occur and may take up to 6 hours to calm down. Think big pout and expect people to ask whether you have had fillers. By Day 2 it will look as though you have applied a lipstick and swelling will usually be entirely gone.
Eyeliner: swelling and redness can make it appear that you have been crying. A few hours to allow the eyes to return to normal is recommended.

You can absolutely continue working after you have had cosmetic tattoo. No down time required, however you may be a little red in the area surrounding the new tattoo. This calms down very quickly, and shouldn't be noticeable by others within an hour or two of your appointment.