Aww sayang, demam lepas jab tu memang common actually, immune system working hard, but since she's only 2 months, please do check with your pediatrician or clinic la, especially to confirm it's just post-jab fever and bukan anything else, okay? A few of us mums have gone through this and the doc usually confirm if it's normal reaction or not je. In the meantime, paracetamol dose as prescribed, keep her cool (lukewarm sponging), and make sure she's still feeding well, my friend's baby bounced back in a day or two once fever came down. Hang in there, you're doing great!