## **Core Concept**
Gold poisoning is a known side effect of gold therapy, often used in the treatment of rheumatoid arthritis. Exfoliative dermatitis is a severe skin condition characterized by widespread scaling, erythema, and peeling. The treatment of gold-induced exfoliative dermatitis involves discontinuing the offending agent and administering supportive care.

## **Why the Correct Answer is Right**
The correct answer, **D. Dimercaprol**, is a chelating agent used to treat heavy metal poisoning, including gold. Dimercaprol works by binding to the gold ions, forming a stable complex that can be excreted from the body, thereby reducing the toxic effects of gold.

## **Why Each Wrong Option is Incorrect**
* **Option A:** This option is incorrect because, although corticosteroids may be used to manage the symptoms of exfoliative dermatitis, they do not specifically treat gold poisoning.
* **Option B:** This option is incorrect as there is no specific treatment listed here.
* **Option C:** This option is incorrect because, while penicillamine is a chelating agent used in the treatment of heavy metal poisoning and certain diseases, dimercaprol is more specifically indicated for gold poisoning.

## **Clinical Pearl / High-Yield Fact**
A key point to remember is that chelation therapy is a critical component in the management of heavy metal poisoning, including gold. Dimercaprol is particularly useful in treating poisoning by heavy metals like gold, arsenic, and mercury.

## **Correct Answer:** . Dimercaprol