I'll assume anything in contact with your skin will cause aggrivation so maybe something like this...
https://www.ebay.co.uk/itm/313213420144 could help?
it means buying a fast helmet too but it's practical, airsoft safe & non contact (plus a cool factor you could modulate to your hearts content).
is there any materials that you can wear without causing irritation, silk, cotton etc? you might find a snood type cover could help too.