Go through these in order and stop at the first one that applies. If you are reading this for someone else, answer for them.
Call emergency services now if the person has:
And for anyone, someone who:
Seek urgent medical assessment for yellow skin or eyes, dark urine, worsening upper abdominal pain, unusual bruising, reduced urination, or new confusion after an exposure.
These can indicate liver, kidney, or clotting injury.
Contact the treating service promptly if symptoms return or worsen.
Mild skin irritation that settles after washing may need only routine advice, but ongoing burns, blistering, eye pain, or vision changes need urgent assessment.
Routine follow-up is not enough for a new ingestion because serious effects may be delayed.
After discharge, attend all planned blood tests and follow-up visits.
And for anyone, someone who:
The article also says
Get immediate poison-centre advice after any suspected swallowing of concentrated eugenol or clove oil, even if the person feels well.
Do not make the person vomit.
If they are unconscious but breathing, place them on their side if it is safe to do so.
Do not put anything in their mouth.
Every sign above is quoted from the sofidex article on Eugenol oil overdose. If you are not sure, err upward — it is always reasonable to be checked.