What Causes Burning And Itching On The Scalp?

hellow,i am Akshay Khadye from india,3 days ago,i got fever, our doctor detect it 'Thypoid' he gave me medicens,now i am in better condition and taking his medicens...yesterday means on sunday,i go to saloon for haircutting...on that night my mom put some oil and massaged my head...on 1:45 i wake up because my head is started to eatching badly...i never sleep up to monday morning.....can u tell me what is the reason of eaching and burning of my scalf?i cut my hairs after 2 months......this is reason or something els please tell me...i have cold also....