Under my tongue is swollen but only on the right side of my mouth. What is that? I also have a nasal drip.

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2 Answers

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It is most commonly caused by allergic reactions to food or medications. Angioedema typically occurs rapidly and presents with symptoms including a swollen tongue or throat. Removal of the causative foods or medications could do the trick.
How long has your nasal drip been present? You mean it occurs with the tongue swelling or you just have this condition for a long time? If the two conditions occur at the same time, it is most likely to be caused by some allergic reactions. Using antihistamines such as benadryl would help. If the tongue swelling occurs recently and the nasal drip is chronic, the tongue swelling may be due to incidental bites by yourself, glossitis, hot or spicy foods, excessive consumption of alcohol, or tongue infections.