Talk to Pediatrician on Frequent Allergy

Baby Girl age 19 months since age of 6 months she is allergy problems very frequently on average we can say 2 to 3 times in a month. Day 1 and 2 runny nose with watery discharge, sneezing, watery and red eyes (treatment agolix syp 2 to 3 times a day) day 3 to day 7 nasal blockage and white mucus from nose and chest problems starts with sounds in chest, fast breathing, cough, sleep and food disruption, crying irritation and some times she develop fever Mytica sachet with a spoon of water neubilize with 3cc NS, 0.5cc atem and ventolin 0.5cc for fever febrol Doctor has also prescribed her amoxicillin syp but we cant find it in market

she is on mother feed

what's the permanent solution please