Do you rinse it out? Or does the white cream blend in?

I have a small tube of external Canesten cream that came with the Canesten tab I bought a while back. The tube says not to use for more than 7 consecutive days at a time. Would this rule also apply to your scalp?
Hair type: Mostly 3C, medium porosity to high porosity depending on the day, dense, fluffy, dry, tangly!