Hello
Fever with chills and more fever in the evening may be due to , these reasons , these includes.
1
Typhoid fever , diagnosis can be confirmed by
Widal test and serology test for typhoid fever . As this is a very common fever which causes evening rise of temperature . (
paracetamol only subsides fever but no cure) .
2
Tuberculosis , diagnosis can be confirmed by chest X RAY , blood for E S R & c b c .
3 Jaundice is the another most common cause of such fever ( with mild chills ) . Diagnosis can be confirmed by serum
bilirubin examination ( direct , indirect , total ) with S G OT , SG PT .
However there are other so many reasons of such fever , as Dengue ( serology test) , malaria ( peripheral blood film ) , viral but deal as mentioned above .
Consult a physician and get his opinion as mere use of paracetamol is not good for health.
Good luck.