Treatments are not painful. In fact, most people find them calming and relaxing. Most people compare the sensation to less than that of a mosquito bite. Obviously, the number of treatments will vary with condition and patient. Chronic problems generally require more treatments. Some patients notice an immediate improvement, whereas others may not notice effects until several treatments have been performed. Researchers agree that the average number of treatments is between ten and sixteen, and the frequency is between two and four times per week.