I'm male, 22, UK. I was using Right Guard for years, then apparently a 'New Formula' was introduced, but apparently this was the case with others too. I tried changeing the fragrance thinking it was specific ones etc. but it was still really bad, I was itching (like the best itch in the world to scratch but that you regret as soon as you've scratched) but then got painful too, deep rooted pain (I'd get exaiming if you're female though to be safe).
I went to my GP (doctor) and he said it was an infection and gave mesome cream and said stop usning deoderant and use the cream until it's gone.
I did and it went. Great. But then as soon as I used my deodorant, it came back.
I went to my pharmacist and told im my symptoms. His eyes widened and he said "I have it too! It's the 'improved' ingredients contained in te propellants. Use a cream or stick".
I promptly stopped using deodorants and then only used a sure one. It's not quite a stick it's like a dome wit a hole in te middle that you push cream up through and then spread it under arm. It's absolutely fine and went straigt away. I used another traditional stick one and that effected me badly too. I genuinely think tis will help people. I would suggest you stop using anything until it's virtually gone (keep clean and dry and spray your clothes with aftershave or perfume instead) and then use a cream one, defintely not spray. Good luck!