Source: Tafsir al-Ahlam al-Kabir (Ibn Sirin)
A cold in a dream indicates a minor illness or news coming from afar.
Source: Ta'tir al-Anam fi Ta'bir al-Manam (Al-Nabulsi)
A cold indicates a small worry that disappears quickly.
Source: Al-Isharat fi Ilm al-Ibarat (Ibn Shahin)
A cold is interpreted as news. If the mucus is clear, it is good news. If it is murky, it is bad news.