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 if facial drooping occurs with possible stroke signs, such as:
Seek same-day medical assessment for new one-sided facial weakness, a painful blistering rash around the ear, or an inability to close one eye.
These symptoms need prompt diagnosis and eye protection, and treatment may be time-sensitive.
Get urgent help if your eye becomes red, painful, very sensitive to light, or develops blurred vision.
These symptoms may mean the cornea is being injured.
Seek urgent medical advice for rapidly worsening hearing, severe vertigo, repeated vomiting, a spreading rash, or symptoms occurring while your immune system is severely weakened.
Routine follow-up is appropriate for slow recovery, ongoing facial tightness, persistent pain, tinnitus, or balance problems that are not suddenly worsening.
Every sign above is quoted from the sofidex article on Ramsay hunt syndrome. If you are not sure, err upward — it is always reasonable to be checked.