Hello dr Glenn. I'm 21 years old male from Greece.When i was 16 i washed my hair only once a weak for 3-4 months.It became really oily and i had itchiness.That was during the winter.As the summer approached i woke up one day and i could see my scalp through my hair.I examined the scalp and it looked red with some pimples here and there but i thought it was normal.After a while the itchiness became worse but the everyday washing and going to beach calmed my scalp.After the summer period i started to feel a burning sensation like ants crawling under my scalp.My scalp became very very red.I was in pain so i went to a dermatologist.He told me i had pytiriasis and gave me 2 shampoos one red and one orange.After one month the symptoms weregone.I didnt experience any dandruff.Now 5 years later without any treatment the hair loss is exactly the same.My hairline and crown area hasn't been affected.My hair loss is located in the mid scalp area.Could this caused permanent hair loss?