Hello, my son has an otitis with pus. The pediatrician prescribed a bu…

Hello, my son has an otitis with pus. The pediatrician prescribed a bunch of medications and one thing scares me - this is Suprastin. I read in the instructions that it cannot be given to children under 3 years old. At the doctor's appointment, I asked if I could give him Zodak since he was at home, she said the child is too small, like it can't be done, but why then can Suprastin be given if it goes from 3 years old? Of course, I understand that the dosage was reduced, but still, it's scary to give the child who is only 3 months old. When my daughter was about 2-3 months old, they prescribed exactly Zod