Yes, a baby can get a sinus infection, but true bacterial sinusitis in infants is uncommon and needs a pediatric exam for diagnosis.

Yes, a baby can cut a first tooth at 3 months, though most start teething closer to 6 months.

Yes, for U.S. domestic flights a birth certificate can verify a baby’s age; for international flights, babies need a passport.

Yes, babies can get a yeast infection—usually oral thrush or diaper rash from Candida—and both clear with proper antifungal care.

Yes, a healthy baby can fly at 3 months; use an approved car seat and plan feeding at takeoff and landing.

Yes, babies can fall asleep with hiccups; infant hiccups are common and usually harmless when feeding and sleep safety are on track.

Yes, a baby’s fall can cause brain injury, though many minor bumps are harmless—watch for red flags and act fast if symptoms appear.

Yes, a baby can sleep with a pacifier; at naps and nights it’s safe and may cut SIDS risk when standard safe-sleep steps are in place.

Yes, fetuses can react to belly rubs, especially from mid-pregnancy onward, when touch pathways and movement patterns are active.

Yes, a baby can react to a pregnant parent’s emotions in the womb via stress hormones, heartbeat changes, and sound—not by understanding feelings.