The sensation of something stuck in your throat is commonly caused by acid reflux irritating the throat. The combination of an acid-reducer (rabeprazole) and a medicine that helps stomach emptying (domperidone) is highly suitable and effective for this. However, since you have no pain or fever, the prescribed antibiotic (sparfloxacin) and anti-inflammatory painkiller (piroxicam) may not be necessary. Furthermore, some painkillers can actually worsen acid reflux. I suggest consulting your doctor to see if you can safely discontinue the antibiotic and painkiller, and focus on the reflux therapy alongside lifestyle adjustments like avoiding lying down right after eating.