I don't use anti-bacterial agents on my skin - quite careful about it now, although when I was a tearaway teenager tuning cars I was pretty cavalier about petrol, paraffin, Jizer, Gunk, Swarfega, greases with all sorts of additives including molybedenum, paint strippers, cellulose thinners, all types of one-pack paints, two pack varnishes, etc, etc, - not probs apart from the time I soaked my jeans in petrol and thought "It'll dry".

Now, not so lucky. Must be age.