monitor parasites

[Lrptls]

i had posted a while ago about my baby savannah monitor having parasites. He had to take a bit of dewormer medicine twice, got another fecal test done and got 2 more doses of the dewormer meds. I was disapointed when i got the 2nd fecal results because i didn't get to talk to my vet. I was hoping he could tell me if the parasites were still as bad, worse, better. But i just got told he is still positive for parasites and keep giving the meds. So i have to take another fecal sample to them soon (by the way its $13 every time =\ ) and hope i get some sort of information about it. He does look alot better though, his colors are brighter, he use to be very dark and he looks like he may be gaining weight. Hes been taking meds sence the beginning of December, do you think this is taking too long, maybe he should be taking some other kind of meds? Has any one else had a monitor with parasites before, very bad? (my vet said mine had the most eggs in his fecies than he had ever seen before)