I am a medical professional. I received several Radiesse injections in February. Nasolabial folds, marionette creses of chin and furrow between brows. The needle sticks from the numbing itself are rather painful, the injections not so much. To distribute the Radiesse evenly, your face is pinched from inside and out extremely firmly. My sights ranged from dark blue/black to yellow/green for 10 days. I retreated to the ice cold of the mountains where I knew I would not be seen by friends. I liked the end result, but had told myself it was not worth the time, money and pain. All was well until 5 months later. Pea-sized, white lumps began forming at the various injections sights every 4 to 5 days. The lumps are hard and whiter than the rest of my skin - they look like boils. I have used warm compresses on and picked at some, and others I've left alone. The one's I've messed with have "gone away" but left scars. I actually cut/picked/pinched the lumps out (some "stuff" a whitish gel-like liquid and some resembling more of a solid. The lumps I've left alone are still there in their original pea-sized, whitish form and have been for 3 to 4 weeks. The Dr who performed the procedure is a very successful & experienced plastic surgeon and a trusted friend. I have seen patients remain satisfied for > 12 months, but I am so dissatisfied with, embarrassed and angry about my results that I felt the need to share. Please educate yourself before experimenting with your face!