Thanks for writing to H.C.M.for writing query.
I read your problems regarding accidental injury
on face and neck on sudden fell on ice about 3 days back.
You said that you have a dark strip of back color on bridge of nose. For this discoloration of skin don't worry, I suspect this is because of sub cutaneous haematoma
which will resolve in two to three weeks time. As far as on turning face down as you feel pain in neck and some dizziness
, this demands clarification to avoid further complication you are advice for-
(1) C.T. scan of head to rule out edema and any fracture
and intra cranial haematoma.
(2) X-Ray cervical spine
Depending on the investigation report and clinical findings treatment can be planed, meanwhile you can take analgesics and anti vertiginous drugs.