After a Botox injection treatment, there are a few common discomforts that may occur, and depending on the individual may be more uncomfortable than others. A few of the most typical side effects include: • Redness • Swelling • Tenderness • Bruising While these are typical side effects that may last only 1 to 2 weeks after your treatment and are quite common to go through, the following effects are not typical, and will need immediate medical attention: • Issues swallowing • Muscle weakness • Difficulty speaking • Difficulty breathing • Changes in vision • Poor bladder control