You are presenting with signs of infection (dizziness
, fever, headaches) which in your case could be due to an abscess (painful lump on the top of your head) or throat infection/ pharyngitis
). You could take some antibiotics like cloxacilln or oxacillin or antistaphylococci antibiotics plus pain killers/antiinflammatory to alleviate and treat the problem. But I will prefer that you need your doctor so he can properly examine the lump, throat and run some test to rule out possible differential diagnosis like dengue fever, malaria, typhoid fever
, urinary tract infection
etc A throat swap might need to be done to confirm the throat infection. Any case, the source of the infection needs to be identified and treated accordingly.
Wish you the best