I do not doubt that you are allergic to your iguana - you aren't the first person I've encountered through the years whose iguana or other reptile triggered asthma or other allergic reactions.
For those who missed my other response under this thread and doubt that reptiles can trigger asthma and allergies because they don't have fur or feathers, please see the following articles at my site:
Allergy to Iguana iguana
Allergies to Reptiles and Herp-Keeping Products
One thing that struck me when I read Anafranil's first post is that it sounds like English is a second (or third or...) language, which is an indication that s/he may not live in the U.S. or Canada. That immediately changes the situation in terms of being able to find a good home for the iguana with another person or family.
Iguanas are being shipped from Central and South America to wildlife importers around the world, regardless of whether the ultimate buyers have any clue about proper iguana care, or vets who have any education about reptile biology and clinical pathology, or even if there is any way to find the equivalents of the foods we here in the US feed, or get appropriate UVB equipment for them - assuming the new iguana owner can even find any good iguana care information locally or online.
So, my assumptions, upon reading the article, were 1) her health is compromised to the point of not being able to keep the iguana any longer, and 2) she doesn't know of any experienced (or willing-to-commit-and-learn inexperienced) iguana keepers around who are able and willing to take in her ig and has not been successful in locating any.
At that point, I would have referred her to my Herp Societies & Rescues and Vets pages, to see if there are any listed for her country. If there aren't, and checking with the biology profs at the local university, and dog & cat rescue or welfare organizations didn't turn up any leads, my next suggestion is to talk to the public and private zoos and wildlife refuges that may exist in that country.
In the US and other countries where cheap igs have been imported and dumped for well over a decade now, zoos don't have any room for more iguanas, no matter how well loved or cared for they are, because they've already taken in their fill of other people's cast offs. But this is not the case where iguanas and other popular pet trade reptiles are only occasionally making their appearance in a country.
Not all zoos are excellent places, and not all curators are equally knowledgeable about their charges. Not all U.S. zoos and curators take proper care of green iguanas, so it cannot be assumed that zoos elsewhere will.
That being said, I had to jump the "but XXX doesn't care for iguanas as well as I do" hurdle years ago when I was forced to stop doing rescue as a result of my own declining health. If the option for someone calling me asking me to take their ig was saying "No, go figure something else out" or, "Call XXX and see if they can take them", I gave them XXX's number. Even if XXX didn't cater to his or her igs exactly the way I did, I knew that their care was within acceptable practices, and that their care was a far better alternative than what was otherwise available to the caller.
I cringe when I get email from iguana keepers who live in countries around the world where I know the availability of known food equivalents, equipment and supplies, and knowledgeable veterinary care are non-existent, because I know that their iguana is not going to remain healthy for long, or their sick iguana have any chance of getting better, because there are simply no resources available without traveling to another country. That makes iguanas not good pets for people living in those countries.
Heck, I feel the same way about iguanas as pets for people living in countries where all these things are widely available, when the owners are people who are not able to get their iguana to the closest reptile vet, because they don't have the capability to travel the 5 hours one way to that vet, or they don't have any family or friends who can drive them to the vet 30 minutes away, and, having no car of their own, can no longer transport their large iguana by bus, subway, or metro. And don't even get me started on people who can't afford to take their iguana by taxi, because if they can't afford the taxi, then they really can't afford the vet...which means, for all of these people, iguanas are not good pets.
When there are absolutely no resources available (and I didn't see anyone here offering to take Anafranil's iguana, or even offer to talk to her off-list about the possibility), then sometimes humane euthanasia is the only viable recourse. Not the first option, not the best option, but horrendous as it is, sometimes it is the only option. Thank goodness it is not one that comes up often in the U.S., Canada, or the U.K., but the rest of the world is not like that.
Anyone who thinks vets are complacent to euthanasia of non-terminal animals, or shelter workers aren't devastated each week when euthanasia day rolls around, you've got another think coming. I frankly think that all importers and breeders--and pet store owners and managers--should be required to assist shelter workers on euthanasia day several weeks every year. Maybe then there wouldn't be so many dumped animals who need to be moved on to make room for the next batch of dumped animals.
No-Kill shelters are great in theory, but that's closing the barn door long after the horses and cows and goats have all run free. (And do not get me started on the fact that there are more animal shelters in this country than there are shelters for victims of domestic violence to go to when they finally try to make their escape.)
There are other iguana keepers out there who, like Anafranil, are being pushed to the edge, who are trying to figure out who can take their iguana or other pet. The next time someone posts who can only see euthanasia as an option, how about asking a few more questions (including, "where do you live?" ) instead of telling them their illness is bogus, or can't be any worse than yours, or other responses that do nothing to elicit more information that might allow us to come up with viable alternatives or resource search pointers the poster might not otherwise have known about...
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Melissa Kaplan
Anapsid.org
Lizards-in-Scarves Blog