Go through these in order and stop at the first one that applies. If you are reading this for someone else, answer for them.
Seek emergency care for signs of a sudden, severe loss of blood flow, including:
Emergency assessment is also appropriate for confusion, fainting, severe shortness of breath, or chest pain.
Contact a healthcare professional promptly if a new sore develops, an existing wound becomes larger, or pain begins occurring at rest.
New redness, warmth, swelling, drainage, or fever may indicate an infection and deserves same-day medical advice.
Follow-up is usually coordinated with a vascular specialist.
Visits may include an examination of pulses, skin temperature, color, wounds, pain, and walking or hand function.
Blood-flow testing may be repeated if symptoms change.
Routine follow-up is important even after tobacco has been stopped.
A clinician can monitor healing, support continued abstinence, adjust pain management, and address other factors that affect circulation.
These symptoms are not typical routine features of Buerger's disease and may have another serious cause.
Every sign above is quoted from the sofidex article on Buerger's disease. If you are not sure, err upward — it is always reasonable to be checked.