Welcome to HCM.
I am facing many persons of Dhaka, Bangladesh with same problems. They are using Betnovate-N cream for fair skin. It is unwise to experiment with your own face with any such cream.
I like to suggest you the following...
1. Never use Betnovate again. you could apply a Hydrocortisone
1% cream(Topicort/ zocort/ Unicort) on your face at night for 1 week and
2. Apply a Pimacrolimus cream (Elidel
cream) once at morning for 2weeks.
3. You can use a sunscreen cream e.g. spectraban before sun exposure daily.
Visit/ contact a dermatologist
2 weeks later.
Dr. Md. Mostaque Mahmud MBBS, MD (firstname.lastname@example.org)