Is Coryx Safe For Babies?

Hi Please if u dont mind

My baby of 10 months has normally rhinitis sinusitis.Today he presented different runny nose blocked nose etc.Asked pharmacist and they suggested coryx How safe is it.Then in an ours time i gave him banpain because he was crying screaming so much but i dont know if he has a headache earache(sticking finger alot in right ear)Can i give ponstan in btw if neede and what dosage he weighs 11.7kgs and 10mnths almost 11 months