Does Botox on crows feet usually cause swelling under the eye?
Botox does not cause prolonged swelling. You may want to have your doctor examine you if you actually do have swelling a week after your injections. What may be happening is that they injected the Botox too deep or too medial which is not affecting muscles of facial animation unintentionally. If this is the case, it will get better with time as the Botox wears off.