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
Seek emergency help now for:
Trouble breathing, noisy breathing, or a feeling that the throat is closing
Rapidly worsening swelling of the tongue, lips, mouth, or neck
Inability to swallow saliva or continuous drooling
Fainting, confusion, severe weakness, or blue-grey lips
Repeated choking or signs that plant material was inhaled
And for anyone, someone who:
you believe has taken an overdose or swallowed something poisonous
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
2
Is any of this happening?
Be seen today
Call a poison centre promptly if someone has chewed or swallowed any part of jack-in-the-pulpit.
Poison specialists can help assess the plant, the amount involved, and the symptoms.
Do not wait for symptoms if the plant cannot be identified with confidence.
After eye exposure, start rinsing immediately.
Get urgent medical advice if pain, redness, light sensitivity, or blurred vision continues after thorough rinsing.
Young children and anyone with existing swallowing or breathing problems may need assessment sooner.
3
Does any of this apply?
Book an appointment
Routine medical follow-up is appropriate when mouth pain or swelling is not steadily improving, drinking remains difficult, vomiting continues, or skin irritation persists.
Every sign above is quoted from the sofidex article on Jack-in-the-pulpit poisoning. If you are not sure, err upward — it is always reasonable to be checked.