Hi and thanks for your question. Yes, you can have lip fillers if you have eczema and autoimmune allergies. Lip augmentation with dermal fillers is an excellent way to fix asymmetries, change the shape, and / or add volume to your lips while maintaining a natural appearance. I prefer to use Juvederm Ultra or Vollure in the lips. These fillers are made from hyaluronic acid (a naturally occurring substance found in the body that binds water), are safe, and can be reversed if needed. Juvederm Ultra lasts anywhere from 6-12 months, and Vollure can last up to 18 months. You may require anywhere from 1/2 a syringe to a full syringe to meet your desired outcome (it really depends on how great the asymmetry is and how much additional volume is desired). If you find that you want a fuller lip after your initial session of injecting, you can always return to add more 2-4 weeks later. Go slow until you meet your goal to allow for the most natural appearance and for the filler to integrate and settle into your lip tissue. The most common side effects for lip augmentation with dermal fillers are bruising and swelling. To minimize potential bruising and welling, try to avoid blood thinners (aspirin, ibuprofen, fish oil, alcohol) for 5-7 days prior to your procedure.