It's sterile water containing 0.9% benzyl alcohol, which acts as a preservative, allowing for multiple draws from the same vial without contamination
Cerovecki et al., 2010) (see The Effect on Other Tissues Healing as Support )
Am J Clin Dermatol 9:1531 Donath MY, Shoelson SE (2011) Type 2 diabetes as an inflammatory disease
Another short-term, randomized, double-blind, placebo-controlled trial in children (mean age 9.9 1.1 years, n = 24) found that 56.3% of liraglutide recipients reported mainly gastrointestinal symptoms and asymptomatic hypoglycemia [66]
Most of the time, these lumps are benign and related to infections or localized inflammation, but sometimes they can signal more serious conditions that require prompt evaluation