The way our bodies react to mosquito saliva motivates us to avoid being bitten. Which must have had evolutionary benefits, keeping us away from diseases.
I.e. all those people that didn’t mind them and never got itchy from mosquito bites appear to have died out. And mosquitoes really wish that wasn’t true.
I use mosquito coils, they are very effective.
I also have an electric bat, although it’s more for the phycho fun of killing than helping reducing bites. They are just too many.
I tried lemongrass as a natural deterrent but had the impression it made no difference.
What works best for me is: slapping those you can while not caring about the rest. Because once you start to scratch it’s a vicious cycle, so I don’t touch stings and usually then forget about them shortly after.