called FLUCONAZOLE 150mg and now he takes it once a week and no prickly heat rash at all brilliant made a hell of a difference to his life worth checking out (and no side affects folks)
Apparently this drug is designed to combat fungal infections (I don't know if prickly heat comes under that heading).
As far as no side effects, an article in Wickipedia claims that it can increase/ exacerbate cardiac arrythmia and can alter the effects of other medicines..
Self diagnosis and prescription can be fatal, by all means listen to other peoples advice but always check with your GP
Why pay for the NHS and then not use it?