Introduction. Hydroa vacciniforme is one of the rarest forms of photosensitivity dermatoses. It affects sun-exposed skin and is characterised by recurrent fluid-filled blisters (‘hydroa’) that heal with pox-like (‘vacciniform’) scars. Case presentation. We present the case of 13 years old male pacient, whose mother requested a dermatologist consultation for a lesion on the face and upper limbs for more than 5 years. The mother cannot specify what caused the itchy lesions. The process evaluates with remissions and relapses 4-5 times a year, exacerbations occurring especially in the spring and remits in the autumn. The child was consulted at the Dermatology and Communicable Diseases Hospital in April 2018, when the diagnosis of Photodermatosis was established. Conclusions. Hydroa vacciniforme is a very rare photosensitivity disorder of childhood that is characterized by pruritic or painful vesicles in photo-distributed areas. These lesions usually follow sunlight exposure and notably heal with permanent varioliform-type scarring. Onset is typically seasonal, in the spring or summer months.