Hello and welcome, I understand the issue well. Chocolate cysts are due to a condition called endometriosis where the uterine lining grows inside the abdomen and sheds there as in menstruation. So the collected blood becomes surrounded by other tissues and also as a reaction to this blood the surrounding tissue grows and engulfs it leading to a choicolate cyst. These are very common. However they do distort the normal anatomy of the reproductive organs and so problems with fertility arise. The medication prescribed to you are aimed to reduce the production of this menstrual blood inside the abdomen and if the cyst is tiny it may resolve. The folinext tablet is given to every woman trying to conceive as it helps in preventing brain defects in the baby. So you may try this for a few months. However if the cyst is big then it is better to do a folluicular study to see if ovulation is occuring or not and a surgical removal of the cyst along with the endometriotic implant is a better option. So kindly discuss this with your gynecologist and then go for further treatment. Hope this satisfies your query. Thanks for using HCM. Feel free to ask any more questions that you may have. Dr Madhuri Bagde Consultant Obstetrician and Gynecologist