This may not all be eligible.

Your costs are reasonable, and if supported by receipts, should be able to be claimed. Although you would naturally want family with you, there is not a MEDICAL reason for having husband and daughter with you, so those are probably not claimable. If there was a medical reason, you'll need supporting documentation from a doctor or the hospital.

A claim for 30 days is liable to raise a red flag for CRA, so make sure that you only claim what can be supported by documentation, since it is likely that you will be asked to provide substantiation.