I'm concerned about hair loss and hair loss treatment.

I haven't had a lot of hair volume since before. My hair is also very thin, so I was very concerned about hair loss. Suddenly, after washing and drying my hair, I feel like a lot of hair is falling out, which worries me. My hair volume hasn't decreased significantly yet, but when I lose a lot, I think about 100 hairs fall out after drying my hair. Should I undergo hair loss treatment? I'm worried because hair loss medication is said to be strong, but I heard that taking herbal medicine might help with hair loss treatment, so I'm curious. To what extent should I undergo hair loss treatment to prevent hair from falling out?