Lip Augmentation Gone Wrong Because of Lip Sensitivity?

At 3 months, if a "ball" remains to your upper lip you may need a hyaluronidase injection to dissolve the product. Schedule an appointment with your injector to discuss this option. Hope this helps

Teosyal kiss is a hyaluronic acid gel that will disappear within 6 to 8 months. Though you have a "bump" which could represent a deposit of product or a granuloma. It could be dissolved with a hyaluronidase injection to the area. This will likely treat your complaint, although it may accentuate the amount of lip uneveness. You should ask your physician if they could do this injection for you.
I hope this helps.

As the lump appeared immediately after injection and has not resolved this is likely to be the HA product. Sometimes this could be swelling or a small haematoma. However if it is still there after 3 months these are unlikely. 
I would recommend returning to your doctor for a review, with the intention to have the 'lump' dissolved with hyaluronidase, the enzyme that removes hyaluronic acid filler. The area may swell for a day while the enzyme is working and then the lip will decrease in size. You will probably need to have another lip filler treatment to correct the lip volume after having the filler dissolved but this is not essential if you are happy with the results.