I am so sorry to hear that. A lot of people suffer from swollen uvula but this is easily treated and it often goes away. Sometime back, my brother suffered the same but it was managed easily.
There are certain factors that causes this which includes, allergies, certain medications, dehydration, trauma, genetics and infection-the most underlying being "strep throat". Strep throat is caused by an infection with Streptococcus pyogenes baceria.
To begin treat, you need to isolate all these factors to determine which could be the cause. there are natural home remedies that you can use.
1. Use salt and warm water solution to gargle in your mouth.
2. Take two tea spoons of honey three times a day and always try to let it touch the uvula.
3. Take a spoon of tumeric in one cup of room temperature water.
4. Drink a lot of water everyday.
There are other remedies that you can use but these are what we used.
NOTE; You need to see a doctor if symptoms persist.