Does the scalp get oily, itchy and lose hair when washing your hair?

Landlord, my head was itchy a while ago, and it didn't get better after washing. If you don't wash it, it will itch even more the next day. It's no use using any shampoo. I used to wash with drugs (also compound ketoconazole hair tonic, used by Kang Wang and Le Cai), but my itching stopped basically in the first half of the year. I wonder if I used too many drugs. As long as I stop using the medicated shampoo, I will itch again, but after all, I can't use more drugs, which has side effects on my health.

Step one: wash the pillow! To avoid bacteria, even if the hair is washed clean in the future, it will still be infected.

Step 2: Wet your head first, pour some white vinegar in the itchy place, and then rinse it off later (I heard that vinegar can sterilize and relieve itching and soften your hair).

Step 3: I use Shanghai sulfur soap to wash my hair, but it is mainly itchy to wash my scalp, and I don't wash my hair very much (I am afraid of mites)

Part IV: I used Wang Ba anti-dandruff shampoo (Wang Ba didn't work before using this method), and I used toilet water to wash my hair in summer (there was a lecture that toilet water and shampoo could clear away heat and relieve itching, but the effect was not good when used alone).

As a result, the first time I used this method, it was not so serious. I've used it for half a month now, and it almost doesn't itch. Even if you don't wash your hair for two days, you won't feel itchy As for which method works, I don't know. That's how I wash it anyway. Definitely by hand! Remember to adopt it if it works.