You can use a ketoconazole containing antidandruff shampoo like “Scalpe”after washing scalp with your regular shampoo thrice a week for a month and then as maintenance at least once a week for 2 months.
Health Tips
Following blog post should be helpful
"How to Reduce Hair Loss: 25 Easy Ways!" by Dr. Jolly Shah Kapadia - https://www.practo.com/healthfeed/how-to-reduce-hair-loss-25-easy-ways-25454/post
Understanding Dandruff" by Dr. Jolly Shah Kapadia - https://www.practo.com/healthfeed/understanding-dandruff-8830/post