Question

Why do the doctors rub ether before giving you an injection?​

Answer 1

Explanation:

Practical guidance on skin preparation and disinfection

Apply a 60–70% alcohol-based solution (isopropyl alcohol or ethanol) on a single-use swab or cotton-wool ball. ...

Wipe the area from the centre of the injection site working outwards, without going over the same area.

Answer 2

Answer:

Ether takes up this heat of vaporisation from the portion of skin it is sprayed on. The energy lost by the particles from the affected area makes the area cool and leaves it numb i.e. the patient doesn't feel much of pain.