Hi My 20 month is having runny nose after every 20 days and Dr says it's allergy that he got after COVID. And he gaves Timinic syrup 0.5ml and Levolin 2.5ml for 5 days. and if the symptoms are not subsided the Dr will ask to give till the symptoms stops. and it may take evern 2 weeks continuous medication. Why is it like this? And will this every month medication will have health issue for my baby. This is continuing since he is 8 months old.