Answer
No, Covonia Sore Throat Menthol Flavour Spray is not intended for prolonged use, either continuously or repeatedly, and should be limited to relieving existing pain and irritation when strictly necessary.
Sources for this answer
- Covonia Sore Throat 0.2%/0.05%w/v Oromucosal Spray Menthol FlavourThornton & Ross Ltd · emc · SmPC §4.4 Special warnings and precautions for use · Version 9Document updated
Sources checked