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 immediately if you vomit blood, pass black tar-like stool, or see a large amount of red or maroon blood in your stool.
Do not drive yourself.
Emergency help is also needed for:
Contact your usual care team promptly, but not necessarily through emergency services, for increasing abdominal swelling, worsening jaundice, new mild confusion, reduced urine output, persistent weakness after treatment, or side effects from preventive medicines.
And for anyone, someone who:
While waiting for help, avoid food and drink because urgent endoscopy or airway treatment may be needed.
If the person is unconscious but breathing, place them on their side if it is safe to do so.
Do not give aspirin or anti-inflammatory pain medicines.
Routine follow-up includes planned blood tests, liver assessment, medication review, and repeat endoscopy when recommended.
Keep these appointments even if you have no symptoms, because varices are usually silent until they bleed.
Every sign above is quoted from the sofidex article on Bleeding esophageal varices. If you are not sure, err upward — it is always reasonable to be checked.