Dandruff(seborrheic dermatitis) varies from mild to severe. Needs to be treated based on severety. It's a condition which is recurrent. So have to follow strict hair care also during and after treatment. If neglected, severe form can cause hairloss.
Itching is because of dandruff and treatment reduces itching too and improves your quality of life.
Next Steps
consult now with me online/any dermatologist for proper prescription
Health Tips
HAIR CARE for mild dandruff: use Dove anti dandruff shampoo daily over wet scalp for 3-5 minutes and wash with plain water. dry your hair completely in sunlight only. Do not rub your hair while washing/drying hair.
Do not apply any oil immediately after taking bath.