Answer
Rarely, it can cause life-threatening skin reactions. Stop treatment and seek urgent assessment for a spreading rash, blisters, peeling skin or mouth, eye or genital sores.
Sources for this answer
- Co-Trimoxazole 80 mg/400 mg Tablets — Current selected SmPCemc · Summary of Product Characteristics
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.