I doubt there is a causative agent. Alopecia is a condition that causes patchy hair loss, and that may be your problem. Cause unknown, spontaneous regrowth
commonCommon cold. Sometimes people unconsciously rub their lashes and they fall out. Might that conceivably be your problem? I don't think you need to be concerned about infection, though. For specific diagnosis, a doctor will need to have a look. If a doctor is not accessible, perhaps a
digitalDigital rectal exam photo sent to one might be of use.
Best.
Dr. Rockoff