What products do you use that are good for your scalp?

This time I went to the beauty salon and my daughter said she has dandruff...

They told me to dry my hair thoroughly right after washing it..

Maybe it's because I didn't dry it immediately before?

I'm also 고민ing whether I should change my shampoo during this opportunity~

Is there any product among the ones you used that you found satisfactory?

Please recommend something~ If it's too expensive, I'll worry about it again, haha.