It seems That you are having Impetigo
It is bacterial infection caused by staphylococi.
It may be precipitated by friction,perspiration, poor immunity,mild trauma..etc
Take short course of antibiotics.
Take anti inflammatory drugs till redness disappears.
Apply antibiotic cream...like mupirocin
Never apply steroid
cream... which you applied.
Have sitz bath in dettol containing water.
Have blood tests to rule out DM,HIV,anaemia and other internal diseases.
Take healthy food and good sleep.
Avoid stress and worries.
I hope you got my answer.
Still, you consult nearby dermatologist
Dr.Ilyas Patel MD