**Core Concept**
Type 1 lepra reaction, also known as reversal reaction, is a common and potentially severe complication of lepromatous leprosy. It involves an inflammatory response to the death of leprosy bacilli, leading to increased cell-mediated immunity. This reaction is characterized by inflammation of the skin, nerves, and eyes, and can result in significant morbidity if not promptly treated.

**Why the Correct Answer is Right**
The treatment of Type 1 lepra reaction involves the use of corticosteroids, such as prednisolone, to suppress the inflammatory response. Corticosteroids work by inhibiting the production of pro-inflammatory cytokines, such as tumor necrosis factor-alpha (TNF-alpha), and increasing the production of anti-inflammatory cytokines, such as interleukin-10 (IL-10). By modulating the immune response, corticosteroids help to reduce the severity of the reaction and prevent tissue damage.

**Why Each Wrong Option is Incorrect**
* **Option A:** Thalidomide is used in the treatment of Type 2 lepra reaction, also known as erythema nodosum leprosum, but not in Type 1 lepra reaction.
* **Option B:** Clofazimine is an antibiotic used in the treatment of leprosy, but it is not the first-line treatment for Type 1 lepra reaction.
* **Option C:** Rifampicin is an antibiotic used in the treatment of leprosy, but it is not effective in treating Type 1 lepra reaction.

**Clinical Pearl / High-Yield Fact**
It is essential to differentiate between Type 1 and Type 2 lepra reactions, as they require different treatments. Type 1 lepra reaction is treated with corticosteroids, while Type 2 lepra reaction is treated with thalidomide or other immunomodulatory agents.

**Correct Answer:** C. Prednisolone