Probably not. Helmets appear to be no more effective than waiting for natural skull growth to correct the shape of an infant's head.

Does helmet therapy actually work?

Helmet therapy led to 25.6% of infants making a full recovery from positional skull deformation, while 22.5% of infants who received no treatment made a full recovery – which the researchers deem as “no significant difference” between groups. Side effects were reported by parents of the infants who wore the helmets.

Can a helmet fix craniosynostosis?

No, the only way to separate and remove bones that have fused together prematurely is surgery. Wearing a helmet without prior surgery, will not help bones that have already been fused. Why would a baby be born with this condition? Most of the time the reason for craniosynostosis in babies is not known.