K E Y W O R D S : abietic acid, case report, contact dermatitis, dehydroabietic acid, hydrocolloid dressing, rosin Colophonium (rosin) is a natural resin derived from pine. It contains numerous chemical compounds, mostly abietic acid and its derivatives. 1,2 CASE REPORTA 13-year-old girl sustained a skin laceration on the left lower leg. She applied an over-the-counter (OTC) hydrocolloid dressing ("Dressing OMURA ET AL.

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Children who suffer from scarring alopecia, especially in areas such as the eyebrows which are an important part in facial mimicry, are at risk of social stigmatization. Inexpensive, painless and non‐permanent options are available for online purchase, which can be useful in such infants and children. Dermatologists should be aware of the availability of these product and could offer advice in this regard.