S.L.
Two ideas: one, she is seven and a half -that means she is in school - suggest to the school that they have her seen by the school social worker or the school psychologist. The other is that since your husband is deployed, you should as a family be able to avail yourselves of mental health services at the closes military base. Either individual or family counseling might be in order. This does not necessarily mean that she will need to be on medication, but if her depression (or what you think is depression) were serious enough, you might want her on meds. I would also suggest perhaps speaking with her pediatrician's office -