Can a stye be treated with warm compresses?
Generally, warm compresses can be applied during the early stage of a hordeolum (stye) before pus formation. However, once pus has developed or the lesion has ruptured, warm compresses are not recommended. If in doubt, it is advisable to seek medical advice promptly. Detailed explanations are as follows:

If the hordeolum is in its early stage—characterized by localized redness and pain in the eyelid without visible white pus points or signs of abscess formation—a warm compress can help improve blood circulation in the eye area, accelerate inflammatory metabolism, relieve swelling and pain, and assist in clearing blocked meibomian gland ducts to promote resolution of inflammation. When applying a warm compress, use a clean towel soaked in water around 40°C (104°F), apply for 15–20 minutes per session, 2–3 times daily, and ensure the temperature is comfortable to avoid burns.
If the hordeolum has progressed to the pus-forming stage, with obvious white pus spots on the eyelid or rupture with pus discharge, applying a warm compress may cause the infection to spread, worsen local swelling and redness, and potentially lead to complications such as eyelid cellulitis. In such cases, warm compresses should be stopped immediately. Seek medical attention promptly so that a healthcare provider can determine whether incision and drainage are necessary. Avoid squeezing the lesion or continuing warm compresses, which could delay proper treatment.
In daily life, maintain good eye hygiene, avoid rubbing your eyes with hands, and minimize risk factors for developing hordeola. Keep the compress cloth clean to prevent cross-infection. If pain intensifies, redness and swelling expand, or if fever develops, seek immediate medical care and follow professional guidance for anti-inflammatory treatment or surgical drainage as needed.