my tongue swelled badly and I was admitted and had to have a tube put down my throat, after leaving the hospital ( after 3 days) I went to an allergist to see why my tongue swelled, he did a whole work up of test and said I was allergic to dust mites and mole and this is why my tongue swelled, but everything I have read about dust mites a swollen tongue do not have anything to do with dust mites, now I have to take allergy shots weekly for 3 years, it do not sound right to me.