Insulin and injection site reactions

Tara

I think I'm having a reaction to my Levemir insulin. My injection sites are red, warm, itchy, painful, and hard to the touch. Has online else experienced this? Don't know if I should stop taking it? Figures it's a holiday weekend so no one is in the office until Tuesday. Not sure if it's serious enough to call the OB on call?? Any advice? Thanks.