Correct Dose of minoxidil solution

Patient: My age is 20 and I have been recommended to use Minoxidil Topical 2% along with Keraglo Eva tablets. Can anyone just let me know the correct dose of both of them for better results. And also if it is necessary to wash hairs everytime i apply the minoxidil solution onto my scalp.?

Symptoms: Sneezing.

Doctor: