Answer
Yes. Severe reactions are rare but can include airway swelling, breathing difficulty, shock or collapse and require emergency help.
Sources for this answer
- Chlorhexidine Acetate BP 0.02% w/v for Irrigation — Current selected SmPCemc · Summary of Product Characteristics
- UK GovernmentUK Government · Reputable Web
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.