I have input medical expenses for dependants & checked the box to include under spouse's return.Turbotax is claiming the medical expenses in my return in error.Any ideas?

The medical expenses may show up under your return as TurboTax has found this to be the "optimum" claim. Although it is usually the lower income spouse who benefits from the medical expense claim, it is not always the case and TurboTax will apply them accordingly. 

https://turbotax.community.intuit.ca/replies/2647641