Go through these in order and stop at the first one that applies. If you are reading this for someone else, answer for them.
Emergency help is appropriate for difficulty breathing, fainting, or swelling of the lips, tongue, or throat after taking a medicine.
These reactions are uncommon but require immediate care.
Stable, symptom-free areas generally do not require emergency evaluation.
Contact the treating clinician sooner if hair loss is clearly expanding, symptoms return after improving, or a medicine causes new concerns.
New pustules, drainage, increasing pain, or spreading redness should also be assessed promptly because infection may need treatment.
Seek urgent medical care for rapidly worsening painful swelling, fever with spreading scalp redness, or swelling around the eyes or face.
Scarring alopecia usually requires routine follow-up with a dermatologist.
Visits may include symptom review, scalp examination, photographs, hairline measurements, and laboratory monitoring.
Follow-up frequency depends on disease activity and the treatment being used.
Even so, routine monitoring remains useful because early activity can be subtle.
Every sign above is quoted from the sofidex article on Alopecia cicatrisata. If you are not sure, err upward — it is always reasonable to be checked.