I think you can stick to simple medications. Give paracetamol for fever. You can give Chlorpheneramine and phenylephrine drops (10-16 drops. I wouldn t give him the salbutamol and the prednisolone as there is no evidence this will be beneficial in viral upper respiratory tract infection which your chold has. Please be careful in giving steroids if its not required. Avoid using multiple medications. Use paracetamol and maybe T Minic drops.