I care for a group of eyelash vipers, ages and sexes unknown (but likely all female). One has recently developed a bad eye infection. The entire left side of the head is swolled, the animal is unable to hold its mouth shut, and the eye itself had a white blister covering it. Environmental parameters have been fairly constant, and there was no trauma. Obviously vet attention is needed, however has anyone seen this before and if so what was the treatment recommended? Thanks.