I have experience this myself. It usually occurs when my numbers are high.

Yes. It was one of my first symptoms. Once sugar comes down it goes away on its own.

My doctor prescribed me Hyderm 1%Cr: Loprox 1%Cr Din :66123252 a white colored cream which helps cool the irritation.

Yes. That experience was irritating for me because of the yeast in my lady parts. I took medicine for my yeast infection and (finally) it went away. Also, I saw my gynecologist and I followed her advice. She prescribed some antifungal powder for topical use and baths with Epson salts. It was helpful.

Some meds side effects include yeast infections,etc. e.g. Farxiga.