I found that bush onion works ..
Its a bush medicine .. " topical wash" or something its technically called .. you splash it onto your problem area , cut , burn , sunburn , bruise etc .. magic stuff . Takes away pain almost instant , kills infection the same, and keeps bugs off the wound .
We had serious bug issues when we were camped up and kinda got flooded in just north of Katherine , NT . biting flies making huge , like serious huge welts on us that were begining to go pussy , and mum burned her arm .. big time ..
I was looking at the creek and spotted a bush onion .. I had been told about it being a good medicine plant , and it was kinda our best shot at the time , given we were stuck for what looked as days to come ,bush onion looks like a naked lady lilly , but one less petal on the flower , I dug it , crushed the bulb , boiled that , and when it cooled put the juice on mums burn , it was magic, the redness vanished , the swelling went down , pain stopped , and the bugs stopped landing on it ...
We tried it on her bug bites , and the effect was the same , so we put it on all our bites .. then I tried the stuff on my hat collar and cuffs .. no more bug issue at all .
It was weird , the bugs in the tropics int he wet are kinda the stuff of legend .. but this gave us about a 5 cm personal bubble of bug freeness when we moved around the bugs hit into us but didnt land on us .
The bush onion juice boils up whiteish , smells like slightly bitter old boiled potatoe water , barely noticeable when you splash it on , but it is one powerful pain killer / antiseptic / swelling reducer
I was careless and had it on my hands and scooped some rain water off a tarp for a drink , and it numbed my throat , and I pooped for ages after .. it is seriously powerful stuff . external use only .