Answer
Treat this as possible poisoning: call 999 or go to A&E and take the packaging or leaflet with you. Do not try to cause vomiting.
Sources for this answer
- 4head 90% w/v Cutaneous Stick — Current selected SmPCemc · Summary of Product Characteristics
- NHSNHS · NHS medicine guidance
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.