en تخصصي Special گزارش مورد case report A 16-year-old female with psoriasis presented to our Plastic Surgery Department with a significant chemical burn to the neck, upper torso and left cheek (TBSA 6%). She applied a concoction of cream prescribed by her dermatologist in her native country, Poland when she returned to the United Kingdom. A few hours after application she developed a burn with pH of 5. A review of the cream revealed a mixture of 19% dithranol and 5% salicylic acid. This combination is recognized for managing psoriasis, however the strength of dithranol in the combination given is of a high concentration (normally <3%). This alone can cause a burn to the skin if left for a prolonged period of time. Salicylic acid is an enhancer which augments the stability of dithranol and increases its penetration and efficacy. The concentration of 5% is also on the higher end. Our patient was admitted for pain relief and further irrigation till normalization of the pH which was achieved after 3 days.&nbsp; A worrying aspect in our patients&rsquo; case is that she was given the cream to commence at home. High concentration preparation is normally commenced in a controlled setting under medical supervision<strong>. </strong> Dithranol, Salicylic Acid, Chemical Burn, Psoriasis 138 140 http://wjps.ir/browse.php?a_code=A-10-691-2&slc_lang=en&sid=1 Dharshanan Raj Selvaraj 100319475328460012514 100319475328460012514 Yes Department of Plastic Surgery, Aberdeen Royal Infirmary, Aberdeen, Scotland, United Kingdom Bismark Adjei 100319475328460012515 100319475328460012515 No Department of Plastic Surgery, Aberdeen Royal Infirmary, Aberdeen, Scotland, United Kingdom Omar Farooq AL-NAHHAS 100319475328460012516 100319475328460012516 No Department of Plastic Surgery, Aberdeen Royal Infirmary, Aberdeen, Scotland, United Kingdom Lutfi Kamil 100319475328460012517 100319475328460012517 No Department of Plastic Surgery, Aberdeen Royal Infirmary, Aberdeen, Scotland, United Kingdom Indira Yonjan 100319475328460012518 100319475328460012518 No Department of Plastic Surgery, Aberdeen Royal Infirmary, Aberdeen, Scotland, United Kingdom