Dear Mrs Miles,
I do hope this is not presumptuous but I wonder if you could advise me since I notice that you are very 'experienced'.
I have persistent problem with blisters on my 'undercarriage' this becomes most noticeable when things become damp with due to rain or the accumulation of bodily secretions in warmer weather. I have tried various unctions and even asked Cycling Mummy if she could rub some in to see if her magic touch could restore the area...she refused feeling this was best self administered.