Go through these in order and stop at the first one that applies. If you are reading this for someone else, answer for them.
1
Is any of this happening now?
Call 911
Seek emergency care if a finger or toe turns black or dark grey, or if there is sudden severe pain with a cold, pale limb.
These signs can mean that tissue is not receiving enough blood and need immediate assessment.
Other emergency signs, for anyone
Someone who is struggling to breathe, gasping, choking, or cannot get words out
Someone who has chest pain, tightness or pressure lasting more than a few minutes
Someone who has sudden weakness or drooping on one side of the face or body, slurred speech, or sudden confusion
Someone who is unconscious, or cannot be woken
Someone who is bleeding heavily and it will not stop with firm pressure
Someone who has had a seizure that will not stop, or does not wake up afterwards
Someone who has lips or skin that look pale, blue, grey or blotchy
Someone who you believe has taken an overdose or swallowed something poisonous
2
Is any of this happening?
Be seen today
Seek urgent medical advice if:
A finger or toe remains discoloured and painful after gentle warming
You develop a new ulcer, worsening wound, or signs of infection
Pain is severe or sensation does not return
Symptoms suddenly become much worse than usual
3
Does any of this apply?
Book an appointment
Arrange a routine appointment if you develop Raynaud symptoms for the first time, attacks are becoming more frequent, or they affect daily activities.
Assessment is also important if symptoms begin later in adulthood, occur mainly on one side, or are accompanied by joint pain, skin tightening, rashes, muscle weakness, or swallowing problems.
Every sign above is quoted from the sofidex article on Raynaud phenomenon. If you are not sure, err upward — it is always reasonable to be checked.