Focusing on the issue at hand.

(1) If you used the pain relief neosporin your poisoning your frog. (YOU NEED WITHOUT PAIN RELIEF) Bacitracin is actually used to uthenize frogs. wash your hands prior to handling use latex gloves to handle or if none on your hand keep your hands moist.
(2) quarentine your frog. Remove from enclosure and put it in a smaller tank 5-10 gallons and use MOIST white (design free) paper towels as a substrate. (A basic cricket keeper will work) Make sure its moistened with dechlorinated water. Keeping all those plants and obstructions out of the environment will irritate the wound / swelling. Surround the enclosure with a towel on 3/4 sides to reduce the stress of your beloved one.
(3) yes your temperature if reaches 90s is WAY TO HIGH!! Keep between 65-80 degrees. This frog is not a tropical frog so it does not need as much humidity but if you can maintain it around 60-75%.
(4) provide a photo of your frog/enclure/wound area.
(5) I would provide a basic UVB bulb 13watts. NOT A HEAT BULB!
(6) dust your crickets with calcium (WITH D3) every other feeding. I would also suggest to dust your crickets with vitamins once every other week.

If you have any other questions feel free to private myself/ FLYBYFERNS/HEATHERANNE for faster response time.