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 trouble breathing, swelling of the lips or tongue, collapse, confusion, or a seizure.
These are not typical features of Gianotti-Crosti syndrome and may indicate another serious problem.
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
Yellow skin or eyes, dark urine, and pale stools can be signs of liver inflammation and should be assessed promptly.
Seek urgent medical help if the person is very unwell, difficult to wake, unable to drink, or showing signs of dehydration such as very little urine.
A rash that looks like bleeding under the skin and does not fade when pressed also needs urgent assessment, particularly when accompanied by fever.
3
Does any of this apply?
Book an appointment
Arrange routine medical assessment if the rash is new and unexplained, especially if you are unsure what caused it.
An appointment is also appropriate if:
Itching is affecting sleep or daily activities
The rash is continuing to spread or is not starting to improve
The spots become painful, crusted, warm, or filled with pus
There is ongoing fever, unusual tiredness, or swollen lymph nodes
The skin or whites of the eyes look yellow
The urine becomes unusually dark or stools become very pale
Every sign above is quoted from the sofidex article on Crosti-gianotti syndrome. If you are not sure, err upward — it is always reasonable to be checked.