These are small trials but may be of interest:
Otitis Media (Glue Ear) Mills et al: The use of osteopathic manipulative treatment as adjuvant therapy in children with recurrent otitis media (2003). Arch Pediatr adolesc Med 2003; 157:861-886
Colic Hayden C Mullinger B: A preliminary assessment of the impact of cranial osteopathy fro the relief of infantlie colic. Complementary Therapies in Clinical Practice 2006;12:83-90
Infantile Colic Lim KW: a critical appraisal of the literature from an osteopatic perspective.
International Journal of Osteopathic Medicine 2006; 9:94-102