In very rare cases, individuals may have an allergic reaction to the white-legged snake millipede. However, these allergies are not common and symptoms can include swelling, hives, difficulty breathing, and nausea. It's important to note that the severity of the symptoms can vary depending on the individual's sensitivity and the number of bites or stings received. If you are concerned about a specific bite or sting or if symptoms persist or worsen, it is recommended to consult a healthcare professional for proper evaluation and treatment.