You should always do a follow-up fecal to make sure she is clean. Darwin, my beardie, had pinworms and I went to a different vet gave him injections of Ivermectin. I went back for follow-up and he still had them - good thing I checked! I went to my regular herp vet, we treated him with Panacur and upon follow-up fecal, he is clean. So I STRONGLY suggest doing a follow-up - your vet should have requested this.
I think we asked you before EXACTLY what the vet did. Look on your payment receipt/invoice, this should list everything done. If you cannot find it, then call your vet for another copy AND ask what it was, right it down and tell us. It is just too hard to make other suggestion. Obviously, something is still very wrong 
As for a vet in your area go to the Cham Resource page (linked below) and go to the vet listings. Find an ARAV vet in your area - I am sure that there is someone in Houston area.
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Chameleon Help & Resource Info
1.0 Nosy Be Panther Chameleon - Cyrus
0.1 Veiled Chameleon - Luna. She's now hanging from her big jungle gym in the sky
1.0 Beardie - Darwin
1.1 Side-blotched lizards - Ana and Stan for now 
0.2 felines - Kyndra and Lita
0.1 African Clawed Frog - Skippy
0.1 Chilean Rose Hair Tarantula - Rosa Leigh, Died 4/21/06 
0.1 Goliath Bird-Eater Tarantula - Natasha, donated to science 4/4/06
?.? Pinktoe Tarantula - no name yet