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She later found out she had vascular erosion from the injectable hitting a blood vessel on her lips.

Rather than requiring open brain surgery, it is installed into a person's jugular vein in their neck, then moved up to their brain through a blood vessel.

The active ingredient in Rush and other poppers is alkyl nitrite, a chemical that instantly dilates blood vessels when inhaled, producing a brief but intense feeling of euphoria.

The heart and your blood vessels also have an easier time as they no longer have to pump blood against gravity - and they start to weaken.

"This allows new blood vessels and skin cells to be formed, along with more collagen and elastin," he tells the BBC.