Hello,
Thanks for posting your query.
Insect repellent liquids or mats like All out or Good night etc emit fumes which are toxic to the mosquitoes and may cause health problems for humans, if used for prolonged periods.
Though liquid repellents are safer than coils and mats whose fumes can cause exacerbation of asthma, hypersensitivity pneumonitis etc, there may be side effects if the liquid repellent is used for prolonged periods.
Most common reported side effects are eye irritation, headache, frequent allergic rhinitis or colds and difficulty in breathing especially for asthmatics.
The side effects are more commonly seen in young children and babies. Hence, they should be kept away from such repellents as much as possible.
If any cough, breathing difficulty, eye irritation etc is noted, then you should consult your doctor for evaluation and management.
Hope I have answered your query.
Regards

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