A sub-adult, female, giant ditch frog (Leptodactylus fallax) (known locally as a mountain chicken) presented with a puncture of the coelomic cavity with partial intestinal evisceration. Improvised field treatment included replacement of the eviscerated intestines and closure of the wound using cotton-tipped applicator swabs. After seven days, the animal's injury appeared to be healed. During the rapid progression of the healing process, the animal showed no adverse effects. This report demonstrates a novel and successful field technique for wound treatment of a serious penetrating injury in an amphibian. It also shows a practical, feasible, and beneficial procedure that improved this animal's welfare and that might be appropriate under field conditions or if standard medical procedures cannot be followed.