Disability

Companies have the right to require their employees be healthy enough to work, although that's often overlooked when employees show up with a cold or the flu.

Asking for an exemption from attendance policies can come back to bite her. Fellow employees can become very resentful, which isn't good. Do other employees also leave work early on occasion? If so, that's essentially a non-issue. Good for her for not going in when she had a bad cold. And only being late once is just about exemplary.

She needs to have a good talk with the management, especially since they seem quite comfortable with having her there.

My knowledge of how SSI works is quite limited, but does her working impact that?