Hi there Ashley.
I hear you & understand your angst & frustration!
Do try to use a 2% ketoconazole
soap to wash your armpits daily while bathing & leave it on your skin in contact for 10-15 mts at least!
In addition, do use cream called Sensibio D.S from a company called Bioderma (French product) each time after shaving the area & as a regular cream . It should help with the prevention of pseudofolliculitis &^ redness!
I dont know what rash
cream you use but immediately after shaving for the 24 hrs you can use a cream containing a mix of betamethasone+fusidic acid
(Fucicort is one such cream from Leo pharmaceuticals)!
If you can get a doc's prescription. do also simultaneously take a one time oral dose of a combination pill containing 2Gm tinnidazole & 200mg fluconazole
that should help set things right!
Cheers & wish you good luck & great health!
Dr Praveen Rodrigues MD
Vikram Hospital Bangalore, India