Can thrush cause your baby to be super fussy? My son has thrush and his doctor prescribed him some…

Can thrush cause your baby to be super fussy? My son has thrush and his doctor prescribed him some antibiotics that I give to him every 8 hours. I've been doing it for about a week. The last 3 days he's been screaming at the top of his lungs if he's awake and not eating. I thought maybe he was still hungry and I already feed him 3oz and he's only 3 weeks old. I gave him 3.5oz at 1am and he was screaming again so it's not that. He won't take his pacifier. He will still scream if I try swaddling him, cuddling him close, going outside, walking around with him, rocking him, changing him, everything. Idk what to do?