Severe Allergies

Sorry to hear about your terrible allergies. Sounds like your immune system is severely depleted or challenged.
I also have severe allergies to LOTS of foods (Wheat, Corn, Shellfish, Peanuts etc) as well as different meds, metals etc. I also have severe asthma as my allergies extend to pollen, dust, pet dander and smog.
I find that if I do HERBAL treatments AND acupunture AND asthma medications, AND avoid all my triggers, then I can live a semi-normal life. I recommend seeing a good herbalist or acupuncturist/herbalist to supplement whatever MD you already see. Herb Pharm is a good company and I use their products. However, you need to see if you are allergic to any of the herbs (I am). So, what i do is have my wife go to the market with me and muscle test EVERYTHING to see if I'm allergic to it or not so I don't end up wasting money on stuff that I'm allergic to. I pretty much muscle test EVERYTHING we buy to eat as I am allergic to weird stuff (melons and mangos for example). The way I test stuff is I hold the item by my chest or belly with one hand, and stick my other arm out to my side. My wife then pulls down on my arm. If I am weakened and it's easy to pull down my arm, then I know I'm allergic to that thing. It's called Applied Kinesiology. It's saved me A LOT of grief. Periodically I have to test ALL my food and vitamins to make sure that I haven't DEVELOPED an allergy to something that I was previously not allergic to. Sometimes it happens. And whatever I'm allergic to makes me extremely fatigued. So, it's worth the trouble to do the muscle testing. I also have to muscle test THE SAME SUPPLEMENT (Vitamin D for example) from different companies and I'll be allergic to some companies Vitamin D and not the others based on whatever additives or additional ingredient they put in the supplement.
Also, worth the trouble to do the herbs as it helps me with asthma which is actually life-threatening.
I have never had to do dental work in a hospital as my allergies do not extend to the dental related products that you mention. However I am rather paranoid of dentists, so to deal with the pain, I always take some Vicodin (not too much - like half a pill) before the session to limit the pain.
Good Luck!

With respect to medical interventions, you might consider preparing for exposure to known or suspected allergens by taking prednisone and/or antihistamines (e.g., Benadryl (Diphenhydramine)). This should be under the direction of a physician who has substantial experience in immunology -- preferably an allergist or immunologist. Have you had any studies conducted to see if the genesis of the problem can be identified -- e.g., immunoglobulin studies? Seek competent professional assistance in the first instance -- as many doctors lack the experience and knowledge to treat patients such as you.

Allergies can be the result of poor gut function. Have you done any gut repair with all the treatment you've had?

hi, Sorry for all who have been going through the perpetual and actual Day-and-Nightmares of Allergies. Some give up the Foods they Love, some have to Sacrifice an Outdoor life style or have to change their path seeing someone with a Furry Pet.There is no end to this Ongoing List. Living here in Texas feels like adding to the number of sufferers probably. Talking to a such a friend, I discovered recently, about a kind of no-drug, no-cuts, no-Injections treatment he is receiving here in Grapevine, after finding a deal on GroupOn.Treatment is called NAET in short, and is a combination of Kinesiology, and Acupuncture.
What this friend of mine was explained by the person rendering treatment somehow made better sense to me than many others. A weak Immune system logically would let you catch every passing by irritant and letting you get sick without reacting to it.( as in Aids), where the immunity is deficient and the person gets different kind of infections by Bacteria and Viruses, while immune system cant do a thing about it. So my educated guess would safely be a poor or Challenged immune system. On the Other hand my friend is suffering from all the hallmarks of a perfectly capable and reactive and functioning immune System. Question is why the Pollens, the cat or dog Fur or other Edibles are perfectly innocent with all the other people( Otherwise Healthy), but not with my Friend. Well then most probably his immune System is pretty heathy and Functioning But.... only TOO JUMPY and Reactive more than required AND... it needs a little CALMING DOWN.
Since now my friend Feels Better, without ant side effects of Antihistamines and Steroids, then you could try it too by finding an NAET practitioner near you.
After doing a little research into NAET,I found no Overwhelming body of evidence in it's favour, with a Scientific Proof and Legitimacy. Do you think I should Stop my friend from getting this treatment?? I would in my wildest dream stop him even this treatment is only a VooDoo magic,
As long as Nothing is Pushed into his body, there are no Drugs,no life long abstaining from things, no side effects of our normal Pill Popping and drug Shooting, I am All out for this treatment, since it is really helping him, and he is feeling better and is happy.