What is a molluscum contagiosum? A molluscum contagiosum is commonly known as an “eye boil” or “eye sore” or “needle eye” in some places. There are two types of molluscum contagiosum: internal molluscum contagiosum and external molluscum contagiosum, depending on the location. What is internal mydriasis? Internal mellitus is an acute inflammation of the lid gland (called internal mellitus because the lid gland is near the inner layer of the eyelid). The common presentation of an internal mydriasis: swelling is limited because the internal mydriasis is confined to the lid gland; pain is evident; the lesion is hard and painful to palpation; and the inner surface of the eyelid (i.e., the conjunctival surface of the lid) is limitedly congested and swollen. 2 to 3 d later, yellow pus spots may form (below), most of which may break down into the conjunctival sac, and a few break down into the skin surface. The inflammation decreases significantly after the blepharitis breaks down and gradually subsides in 1 to 2 days. Most heal within a week or so. It may also resolve on its own without puncture and drainage. In children, the elderly, or patients with chronic wasting diseases such as diabetes mellitus who are weak and have poor resistance, if the causative organism is highly virulent, the inflammation can spread in the subcutaneous tissue of the eyelid and develop into eyelid cellulitis. In this case, the entire eyelid is red and swollen and may spread to the ipsilateral side. The eyelid cannot be opened and is hard to the touch, with significant pressure pain and intense reactive edema of the bulbar conjunctiva, which can be exposed beyond the lid fissure, and may be accompanied by systemic symptoms such as fever, chills, and headache. If left untreated, it may sometimes cause sepsis or life-threatening cavernous sinus thrombosis. Treatment of internal mydriasis: usually topical antibiotics (e.g., tobramycin, ofloxacin, and gatifloxacin in eye drops 4-6 times daily during the day; erythromycin and chlortetracycline in eye ointment at night). If the inflammation is not controlled, it may manifest as redness and swelling of the entire eyelid, with significant swelling and pain, and may even involve the same side, and some may even develop systemic symptoms such as fever and headache. If any of these symptoms occur, it is recommended that you go to the hospital as soon as possible to avoid delaying treatment and never squeeze to drain the pus!