In reply to BenF2001:
I'd just get some Antihydral if you can. I got 5+ years ago and use it regularly, pretty sure it'll be at least another 5 before it runs out. Admittedly I was living in Germany at the time and it only cost 4 euros or something, but even at 20 quid or whatever it costs here, it's good value.
If you have sweaty soft skin, it'll give you a grade for free! You need to use it as part of a regime and sand down any excessively dry skin, and do not get it in the cracks in your skin.