What are the causes, clinical manifestations, and treatment of internal and external blepharitis (wheals)?

Facial inflammation, also known as granuloma, is an acute purulent inflammation caused by infection of the sebaceous glands belonging to the eyelash follicles as external granuloma, and the acute purulent inflammation caused by the facial plate glands as internal granuloma. Most of them are caused by staphylococcal infection. Clinical manifestations: 1, external wheals: limited congestion of the eyes and face, tenderness, partial lateral can be accompanied by bulbar conjunctival edema, pre-auricular lymph node swelling and pain, after a few days, the root of the follicle appeared yellow pus, followed by penetration of the pus discharge, the symptoms of alleviation and healing; 2, within the wheals: the initial eye risk redness and swelling, pain is more intense, followed by the face of the conjunctiva appeared pus, mature pus in the conjunctival capsule and healing. Treatment: 1, antibiotic eye drops or eye ointment, and in severe cases, systemic application of antibiotics. 2.The pus spot can be incised and drained after formation. The incision should be parallel to the edge of the face when the outer wheal is incised, and the inner wheal is incised on the conjunctival surface of the face, and the incision is perpendicular to the edge of the face. 3.When the abscess has not yet formed, it is not suitable to incise, not to mention extrusion and drainage of pus, otherwise the infection will spread, leading to cellulitis of the eyelid, or even cavernous sinus septic thrombosis or sepsis and life-threatening.