Answer:
Do you have an epinephrine pen?
Explanation:
The person is exhibiting signs of an allergic reaction. Asking questions such as "how long has this been happening" simply extends the time the person is suffering. However, asking if they have an epi pen can solve the issue immediately.
Answer:
Damage to the central nervous system (CNS) can cause a neurological disorder called central pain syndrome (CPS). The CNS includes the brain, brainstem, and spinal cord.