**Core Concept**
Scorpion stings can cause severe pain, inflammation, and even life-threatening complications due to the venom's potent neurotoxic and cardiotoxic effects. The management of scorpion stings involves the use of antivenom and supportive care to alleviate symptoms and prevent complications.

**Why the Correct Answer is Right**
The drug used in scorpion bites is a specific antivenom designed to neutralize the venom's toxic effects. This antivenom works by binding to the venom's toxins, preventing them from interacting with their targets in the body, such as nicotinic acetylcholine receptors in the nervous system. The antivenom is typically administered intravenously and can help alleviate symptoms such as pain, sweating, and hypertension.

**Why Each Wrong Option is Incorrect**
**Option A:** This is incorrect because it is not a specific antivenom used for scorpion stings. While pain relief medications may be used to alleviate symptoms, they do not address the underlying cause of the venom's toxic effects.
**Option B:** This is incorrect because it is a medication used for other conditions, such as hypertension, and is not effective in treating scorpion stings.
**Option C:** This is incorrect because it is a type of antivenom used for snake bites, not scorpion stings.

**Clinical Pearl / High-Yield Fact**
It is essential to note that antivenom should only be administered in a hospital setting by a qualified medical professional, as it can cause anaphylaxis and other allergic reactions.

**Correct Answer: D. Kalidom**