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
Call emergency services for severe breathing difficulty, collapse, or swelling of the mouth or throat after using a treatment.
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 prompt medical assessment if:
Skin develops thick crusts or widespread scaling
Symptoms continue or new burrows appear after correctly completed treatment
Pus, increasing pain, warmth, or swelling suggests a skin infection
You are unsure which close contacts need treatment
There is a possible outbreak in a shared living or care setting
Seek urgent medical help for fever with rapidly spreading, painful redness, red streaks, marked swelling, confusion, unusual drowsiness, or feeling seriously unwell.
These can be signs of a significant bacterial infection rather than the mite infestation itself.
3
Does any of this apply?
Book an appointment
Arrange routine medical or pharmacy advice if you think you may have scabies.
Assessment is particularly useful when several household members are itching, the rash involves a baby, or you are pregnant, breastfeeding, immunocompromised, or medically frail.
Every sign above is quoted from the sofidex article on Scabies. If you are not sure, err upward — it is always reasonable to be checked.