**Core Concept**
A chalazion is a small bump on the eyelid caused by a blocked oil gland, which leads to inflammation and swelling. The treatment of a chalazion involves addressing the underlying cause, which is the blockage of the meibomian gland.

**Why the Correct Answer is Right**
Warm compresses are a common treatment for chalazion as they help to loosen the blockage in the meibomian gland, allowing the gland to drain and reducing inflammation. This is achieved by increasing blood flow to the area, which helps to break down the blockage and promote healing. The use of warm compresses is a non-invasive and effective way to treat chalazion, especially in the early stages.

**Why Each Wrong Option is Incorrect**
**Option A:** Antibiotics are not typically used to treat chalazion, as the condition is caused by a blockage of the meibomian gland rather than a bacterial infection.
**Option B:** Incision and drainage may be necessary in some cases of chalazion, but it is not the first line of treatment and is usually reserved for cases where the chalazion is large or has not responded to other treatments.
**Option C:** Steroid injections are not typically used to treat chalazion, as they may cause atrophy of the eyelid tissue and are not effective in addressing the underlying cause of the condition.

**Clinical Pearl / High-Yield Fact**
It's essential to note that chalazion can be a symptom of an underlying condition such as rosacea or seborrheic dermatitis, so a thorough examination and diagnosis are necessary to treat the underlying condition effectively.

**Correct Answer: B. Incision and drainage may be necessary in some cases of chalazion, but it is not the first line of treatment and is usually reserved for cases where the chalazion is large or has not responded to other treatments.**