Ay, first thing, kung ang ubo at sipon ng baby mo ay parang serious na, better to check with the doctor muna bago mag-vaccine, ha? They'll know best kung okay na mag-proceed or i-reschedule.
Generally though, a lot of us mums dito have asked the same thing! From what I hear from my mum friends, ang doctors usually nag-aadvise to wait until the baby feels better, kasi gusto nilang sure ang immune system ay ready. But honestly, this is something to clarify directly with your pediatrician, they know your baby's condition best and will give you the safest call. Don't worry, you're being a thoughtful mom by asking!