The three that are not wait-and-see
Almost nothing after these treatments is an emergency. Three things are, and they all relate to filler.
Blanching. A patch of skin that goes white, or develops a dusky, mottled, net-like pattern, in the hours after filler. This can indicate a vascular occlusion: product compressing or entering a vessel and cutting off blood supply to the tissue it feeds.
Pain that increases. Discomfort after filler should decrease steadily from the moment you leave. Pain that is worse at hour twelve than at hour two is the other main sign of the same problem.
Any change in vision. Extremely rare and the most serious complication in aesthetics. Blurring, a shadow, or loss of vision after any facial injection is an immediate emergency.
In all three cases: ring (520) 555-0155, at any hour, and if there is any delay in reaching us go to the emergency department. Hyaluronidase reverses a hyaluronic acid occlusion and it works best within hours. This is why the question “is hyaluronidase on site and in date” is the most useful thing you can ask any injector anywhere.
What is completely normal
Bruising after filler or a needle near the eye. Small firm lumps in lips for up to two weeks. Swelling that is worse on the morning of day two than it was on day one. Asymmetry at day three, which is almost always swelling rather than placement.
None of those need a phone call, though you are welcome to make one. All of them are why the follow-up appointment is at two weeks rather than at three days.