MyComot, your Marshmellow seems to be very ill, make sure U isolate well from other cats.

Demam could be virus or bacteria infection. Antibiotik tu vet kasi untuk apa sebenar nya? Vet ada confirm dia menghidapi jangkitan bacteria atau virus? Ade buat thorough physical examination to exclude any injuries and inflamation tak? Ade buat any further investigation tak?

No need to continuously take kitten's temperature, U will stress the kitten unnecessarily ... its young weak body is already under a lot of stress ... but do focus on and address the primary and most urgent problem which is causing the fever and may be threatening its life.