Cold Sore Triggers. While symptoms are not usually present with an initial infection, certain factors may trigger later outbreaks of a cold sore. These can include exposure to sunlight or other UV light, the common cold or flu, hormonal changes, and emotional stress.
It was said that Marilyn was an occasional smoker. Although, looking at some of these rare photos it appears the habit was more than occasional. The first time Marilyn was seen sporting a cigarette on screen was in Right Cross (1950), though in her very first screen test she lit and put out a cigarette. She appeared on at least one magazine cover smoking a cigarette, and she is smoking in bed in the opening scene of Niagara (1953).
It came back to haunt her as her stardom exploded but ultimately helped the founding of Hugh Hefnerâs Playboy. Blatant sexuality aside, what brought Marilyn to the attention of the FBI and CIA was her relationship and marriage to Jewish intellectual playwright, Arthur Miller.