I have tried tiger barm it is stronger than vicks, it was! working to get rid of fungal but then I got lazy and kept forgetting so its now come back.
Trouble is it stains, but you can now buy a white version instead of the orangey coloured one. beware it is quite powerful and smelly.
I also filed the nail first(throw the file away after and use a new one next time) I sometimes use sandpaper, just cut it up into small pieces. it does take ages.....to start to improve, possibly at least 6 months
Re painting metal bistro garden set
SNP and Greens end coalition deal