Sharing summer care tips for oily scalps~~

I manage my scalp by using a scalp brush when shampooing, using tea tree shampoo, and applying a scalp pack to soothe a heated scalp. Oh, last summer, my scalp was so incredibly itchy for some reason, so I used a Houttuynia cordata spray for the scalp?! It worked instantly. I can't remember the brand, but I bought the one with the most reviews on Naver Shopping. Please share any great tips for summer scalp care!