Does lemon juice neutralise wasp sting?

the acidic lime juice should bring the pH level back to neutral since the wasp sting is alkaline which causes the pH loevel to go up.

This would netrulize it but it might not stop the pain.

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Actually, the pH of wasp venom is between 7.2 and 7.5, so it is almost neutral. The use of vinegar or lemon juice is an old wives' tale and actually has no effect.