Hello,
From the description of the symptoms,it looks like tinea capitis or ringworm scalp.It is a very common fungal infection among children and teenagers throughout the world. The disease is considered to be a form of superficial mycosis or dermatophytosis.
Fungal spores can be transmitted through contact with an infected person, fallen infected hairs, or fomites, which are contaminated objects.The specific pattern depends on the infecting organisms.Diagnosed by wood lamp examination,microscopic examination of the skin scrapings and culture of the scalp scrapings.
Also consult a dermatologist and get it evaluated.
I hope it helps. Take care and pls do keep me posted on how you are doing or in case you have any additional doubts. Kind regards.
Mostly fungus of hairy area,would respond to internal antifungal antbiotic after getting a woods lamp, which can view the fungus in color.Otherwise a scraping for fungus test easy and simple like the other.