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
Go to emergency care if a widespread rash appears with skin peeling, mouth or eye sores, trouble breathing, facial or tongue swelling, faintness, or severe illness.
These symptoms may signal a serious skin or allergic reaction.
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 same-day medical advice for rapidly spreading redness, increasing warmth or swelling, severe pain, fever, or red streaks extending from the area.
Also seek prompt care if pustules are around the eye, involve a newborn, or occur when your immune system is weakened.
And for anyone, someone who:
has a wound that is hot, spreading red, or leaking pus
3
Does any of this apply?
Book an appointment
Book a routine appointment if pustules:
Keep returning or do not improve
Cover a large area
Leave scars or persistent dark marks
Are painful, deep, or affecting daily life
Develop after starting a new medicine
Occur with ongoing acne that self-care has not controlled
Every sign above is quoted from the sofidex article on Pustules. If you are not sure, err upward — it is always reasonable to be checked.