I see mention of giardia on your receipt and that is one of the parasites that metronidazole is used for. If that is what he has, you will need to do a very thorough cleaning of his entire enclosure and replace all porous items, like branches, vines and afraid all the plants will have to be tossed out. I took the enclosure completely apart and outside to clean first with veterinary disinfectant f10, rinsed and dried in the sun and then did a second cleaning with bleach water. I don’t recall the ratio I used, but it was probably stronger than needed. I even used a small brush to gently clean the screen. Rinsed the heck out of it and then again, dried in the sun. Use disposable or fake plants and things until you get a totally clear recheck.