I dont know how specifically to cure redleg, if that is indeed what it has, but i recently had a very sick wtf with sores all over his body, and hes better now. The key to him getting better is warming him up. Keep his cage warmer than usual, as the warmth boosts the immune response. He should be quite warm to the touch..but also have an end where he can cool down. Also, I changed mine to a hospital setup..an aquarium with plain white paper towels on the bottom, a dish of water, and a cup and other things to hide in. Change out the paper towels daily, change the water daily (rinsing the dish out), and wash out the cup or hiding places. also wipe down the walls. make sure you are using dechlorinated water, not distilled or reverse osmosis. if your frog doesnt eat teh crickets, take them out..they may chew on his skin and casue further infection. also, if the crickets are in tehre all the time when he is in no mood to eat, he will not be stimulated by them anymore. Just try a cricket every few days to see if he wants it. Other than that..i don't know. But it worked for my fellah. good luck!