This is Dr. Rahul Nagar, Consultant Dermatologist
in New Delhi, India.
From the history provided it seems you have developed contact dermatitis
, possibly allergic to the cream applied. You should meet a dermatologist and follow his advise.
You should take antihistamine tablet to control itch and irritatio.
Apply an antibiotic ointment on raw areas if any. Apply calamine
lotion for soothing effect.
Keep parts clean. Wash with a mild cleanser like cetaphil
You may need a short course of oral steroids.
Consult your dermatologist.
Take care and get well soon.