I think that’s too young honestly.

I wouldn’t

“In infants” signs of Dehydration are : No wet diapers,fever,unusual tiredness,no tears& dry mouth

JUST a FYI: I called my nurse friend “who works at my Son’s Pediatrician ,,now & Pedilyte is for children age 1 and older

If you can’t get in touch with your ped call the nurse advice line.

I Agree with pp that young I’d ask a pedi

Always ask your pediatrician - him being so young and all.