Rhinophyma

Rhinophyma (Greek “nose growth”) is a benign skin deformity characterized by tumorous growth leading to a large, bulbous, and erythematous (reddish) appearance of the nose.

At present its cause is classified as 'unknown' though it is often associated with Rosaceaplugin-autotooltip__plain plugin-autotooltip_bigRosacea

"Rosacea is a long-term skin condition that typically affects the face. It results in redness, pimples, swelling, and small and superficial dilated blood vessels. Often the nose, cheeks, forehead, and chin are most involved. A red enlarged nose may occur in severe disease, a condition known as rhinophyma.

It is commonly mis-attributed to alcohol abuse :

Historically, rhinophyma was erroneously considered to be linked with alcohol consumption because substances such as alcohol and caffeine can cause local vasodilation, which worsens the symptoms. This alleged association with alcohol has caused much social stigma and loss of self-esteem in patients suffering from the disease, with several nicknames for the condition such as 'whiskey nose' and 'rum nose'."

See Eplasty. 2015; 15: ic25.