Just today I ran across a report in a medical journal that may be of interest on this topic. Here it is:
pediatrics 1999 aug;104(2):e23 (issn: 1098-4275)
yu ym; punyasavatsu n; elder d; d'ercole aj
division of pediatric endocrinology, department of pediatrics, university of north carolina, chapel hill, north carolina 27599-7220, usa.
including penile enlargement and growth of pubic hair and facial acne, developed in a 2-year-old boy over a period of months. This sexual development was induced by incidental and unintentional dermal exposure to a testosterone cream that was applied to his father's arm and back as a part of body building regimen. Except for penile size, the other signs of virilization diminished several months after the exposure was discontinued.
Fyi