I would tell them to tell a trusted adult and use a helpline like nsvrc.org as a resource. Be there to support them during the aftermath as it will take a toll on their mental health.
Answer:
Use an inhibitor to help open up blood valves to improve blood circulation.
Limiting intake of salty food, eating a nutritious-rich and well balance meal of healthy food
The patient should also exercise more to burn any extra calories/fat, as well as improve circulation of blood & strengthen various body systems.
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A strong dependence on a drug or substance is known as an addiction.