In addition, a high-current arc can produce a pressure wave blast in excess of 1,000 pounds per square inch (6,900 kPa) of pressure. This can throw the victim and cause severe injuries. Flash burn. Flash burns are caused by electrical arcs that pass over the skin. The intense heat and light of an arc flash can cause severe burns in a fraction of a second. Although the burns can cover a large area of skin, they are largely superficial and the tissues beneath the skin are generally undamaged and unaffected. This typically occurs when the frequency of the AC current is significantly higher than the 50 or 60 Hz used in land-based electrical distribution systems (such as in aircraft). Flame burn. Flame burns are caused by contact to objects that were ignited by an electrical source when associated with flash and arc burns. Oral burns. This is caused by biting or sucking on electrical cords, and it most commonly happens to children. Electric current typically passes from one side of the childs mouth to the other, possibly causing deformity. Pathophysiology
Four electrical factors determine the severity of the damage caused by electrical burns: voltage, current, resistance, and frequency. The severity of the burn also depends on the pathway the current takes through the body. Generally, the pathway of the current will follow the course of the least resistant tissues: firstly blood vessels, nerves, and muscle, then skin, tendon, fat, and bone.
infection of nose and nasopharynx - 70%
infection of palpebral conjunctiva - 15%

Diagnosis
History
Unilateral nasal obstruction
Epistaxis
Local pruritus
Rhinorrhea
Coryza (rhinitis) with sneezing
Post nasal discharge with cough
Foreign body sensation
History of exposure to contaminated water
Increased tearing and photo phobia in cases of infection of palpebral conjunctiva
On examination
Pink to deep red polyps
Strawberry like appearance
Bleeds easily upon manipulation
Diagnosis
confirmed by biopsy and histopathology - several round or oval sporangia and spores which may be seen bursting through its chitinous wall

Treatment
Surgical excision - wide excision with wide area electro-coagulation of the lesion base
Medical treatment is not so effective but treatment with a year-long course of dapsone has been reported
Recurrence is common

Epidemiology
Disease endemic in Chhattisgarh South India, Sri Lanka, South America and Africa. It is presumed to be transmitted by exposure to the pathogen when taking a bath in stagnant water pools where animals also bathe. References


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