How can an individual alleviate overwhelming sexual desire?

Things that alleviate lust include: frequent fasting, marriage for those who are unmarried, and polygyny for those who are able. Among the things that help in this regard is avoiding the causes that incite lust, such as: unlawful gazing, obscene films and images, listening to music, mixing with women and effeminate men, idleness, and prolonged solitude. The most successful treatment is to earnestly and resolutely guard against these causes, occupy oneself with obedience to Allah and beneficial work, and associate with righteous people. One may seek the help of doctors after taking preventive measures.