Infectious: There are various bacterial and viral pathogens which will infect the organs with the neck and mouth that can lead to swelling on 1 side of the neck. For instance, swollen salivary glands including the parotid gland, nevertheless positioned within the lower mouth/jaw, can look like a neck lump https://neckpainexercisespdf03479.snack-blog.com/15696188/the-definitive-guide-to-neck-pain-pillow