Post-monsoon we have lots of flies and insects in the forests. I was hiking up an easy trail last weekend. It got dark and I still had a couple of hours of walking distance to cover.
With no light around, flies tend to hover over my head and in front of my face all the time as I was a bit sweaty and obviously due to the headlamp, which is very very irritating. Most of them were typically attracted by the light.
How do you deal with this?
Closely related: How to deal with little flies flying into the eyes?