Understanding when PMS (pre-menstrual syndrome) meets the threshold for PMDD (pre-menstrual dysphoric disorder), the more severe condition associated with hormonal change through the menstrual cycle, is the first important step someone can make in treating what is often a truly debilitating condition.

The second step, of course, is effective treatment.

Dr Isabel McMullen, Consultant Psychiatrist, outlines the treatment options available, and discusses their potentially life-changing impact.