I can understand why you’re hesitant. Having recurring lip angioedema with an ongoing evaluation for Sjögren’s syndrome makes this a much more nuanced question than a routine Botox appointment. The reassuring part is that having Sjögren’s syndrome by itself is not considered an absolute contraindication to Botox (botulinum toxin) injections. Many patients with autoimmune conditions receive Botox safely for cosmetic or medical reasons. The more important issue in your situation is the recurring angioedema, especially since the cause has not yet been identified. Why the angioedema matters Angioedema can occur for several different reasons, including: Allergic reactions (foods, medications, preservatives, etc.) Idiopathic angioedema (no clear trigger found) Autoimmune-associated angioedema Less commonly, hereditary or acquired C1 esterase inhibitor deficiency Because your swelling involves the lips, any procedure around the face raises an important question: Could the injections, the cleansing products, topical anesthetics, or even the stress of the procedure trigger another episode? Your history is actually somewhat reassuring You mentioned that you have had Botox: about 12 months ago, and once yearly for several years without mentioning a previous angioedema reaction immediately after those treatments. That makes a true allergy to the botulinum toxin itself less likely, although it does not completely rule out the possibility of a new sensitivity developing. The Sjögren’s consideration Since your doctors suspect Sjögren’s affecting your mouth, you are probably dealing with dry mouth (xerostomia) and possibly other mucosal dryness symptoms. Botox injected into the forehead, glabella, crow’s feet, or masseters would generally not be expected to worsen Sjögren’s dry mouth significantly. However, if injections were being considered around the perioral area (around the mouth), I would be more cautious because: you already have lip swelling episodes, the tissues may be more sensitive or inflamed, and distinguishing a procedure-related reaction from your underlying angioedema could become difficult. My practical recommendation I would not say “yes, it is definitely safe” without qualification, but I also would not say that Botox is automatically unsafe. I would be most comfortable proceeding only if: your angioedema has been relatively stable recently, you have not had any episodes involving the throat or breathing difficulty, your rheumatologist/allergist is aware that you are considering Botox, and the injections are not being placed in or immediately around the lips while the swelling issue is still being investigated. Situations where I would postpone Botox I would strongly consider waiting until the cause of the angioedema is better characterized if: the lip swelling is frequent or worsening, episodes occur without warning, you have ever had tongue, throat, or airway swelling, or you are currently undergoing active testing for autoimmune or complement-related causes. Questions that would help determine the risk The most important details are: How often do the lip swelling episodes occur? When was the most recent episode? Have you ever needed steroids, antihistamines, or emergency treatment for the swelling? Is the Botox you are considering for the forehead/eyes, masseters, or around the mouth? My honest impression Based on what you’ve described, I would be more cautious because of the unexplained recurrent angioedema than because of the suspected Sjögren’s syndrome. Your previous tolerance of Botox is a positive sign, but until the swelling episodes are better understood, I would treat this as a situation that deserves individual risk assessment rather than a routine cosmetic treatment decision. If your angioedema has been stable for many months and the injections are for standard upper-face areas, many dermatologists would likely consider Botox potentially reasonable with appropriate precautions. If the swelling is active, unpredictable, or involves the lips frequently, I would lean toward waiting until your allergy/rheumatology evaluation provides more clarity before proceeding.