Yes, country conditions may be used as one of the factors to prove hardship.
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The important thing to remember about the waiver is that the hardship has to flow to the qualifying relative (with certain exceptions). In the present case it is not clear what exactly your ground of inadmissibility would be, but generally remember the extreme hardship must be shown to relate to the US citizen spouse or relative. In this case, since you are speaking about medical issues you may use the specific social/political situation in the home country especially in the event it impacts your medical issues/access to treatment etc. Seek excellent immigration attorney to help you with waivers.
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