Pedialyte for an 8 1/2 month old??

Becky • Mom of 2 💕
My son has had a bad cold for about a week and a half now. At the second doctor's appointment the other day they gave him antibiotics but now he is having diarrhea every once in a while, nothing to be too concerned about but it doesn't help that he isn't drinking as much milk since being sick. I changed his morning diaper at 8 a.m. it is now 1 p.m. and he still hasn't wet his diaper. I am just curious if you have given your 8 to 9 month old baby Pedialyte? Have any of your mom's had success with it? My pediatrician told me it was okay at the appointment but she didn't give me any recommendations on dosage or anything like that for his age. Thank you!