I suffered breast cysts for years in my 40's.  I gave up dairy as diagnosed allergic to it and they dissapeared  never to return. I can now 'get away'  with butter and cream ( only organic ) occasionally as mostly fat. Non-  organic will be full of  antibiotics to treat the constant ...

You don't need to spend any money or have any expensive treatment.They may help but will not reach the cause so have just a sticking plaster effect. The cause is 99% sure to be dairy products. Avoid them completely, even a tenth of a teaspoon can cause problems, until you are symptom free. This could take anything up to 3 months ...