Thanks for asking about this. Botox itself generally doesn’t cause sinus congestion directly, but it can sometimes make underlying issues more noticeable. If you’re prone to allergies or sinus inflammation, you might notice more congestion or mild sinus pressure after treatments, especially if injections are around the forehead or glabellar (between the eyebrows) area where muscles near the sinuses are affected. Pretreatment Considerations: Allergy or congestion medications: If you usually get sinus symptoms during allergy season, taking your usual antihistamine or nasal spray before Botox can help minimize discomfort. Timing matters: Pretreating on the day of your appointment or the day before is usually sufficient. Long-term daily medications aren’t necessary solely for Botox. Hydration and gentle care: Staying hydrated and using a saline nasal rinse if you tend to get congestion can help. Overall, pretreatment isn’t required for everyone, but if you’re prone to sinus issues or allergic reactions, it can make the experience more comfortable and reduce the chance of noticing temporary sinus pressure.