Although fat freezing is non-invasive and pain-free it can feel a little strange. At first you will feel a strong suction as the fat tissue is drawn into the cup. As the area begins to freeze it will feel cold and you might experience a tingling sensation. After around 10 minutes the area will be completely numb and you will relax for the rest of the treatment time. When the cup is removed the area will feel very cold. Your therapist will massage the treated area and the numbness will go.