Can you please let me know how to treat the Gynacomastia issues

Acupuncture can be effective certainly but it has to be properly tailored to the individuals underlying diagnosis in Chinese medicine terms - see “treating the cause vs. the symptoms” for more on that. Even from a western perspective gynecomastia is contributed to by hormonal irregularities, but from a treatment perspective - “why” are there irregularities is the question to ask. By using proper Chinese Medicine diagnostic approaches you can get at the root - or the “why” and then the symptoms will improve.