You may not be able to stop inappropriate laughing on your own, and that’s okay! A therapist can help you identify what’s causing your laughter and recommend better ways to overcome it.  You can find a therapist by searching online. People may experience periodic bouts of inappropriate, uncontrollable laughter due to conditions like pseudobulbar affect (PBA), bipolar disorder, dementia, stroke, or other neurological conditions. Selective serotonin reuptake inhibitors (SSRIs) can help some people find relief from recurring bouts of laughter. Your doctor will determine if medication is right for you. SSRIs do not help all patients, and they could interfere with other medications. Both of these conditions can cause you to laugh inappropriately. With Tourette Syndrome, you may experience the laughter as a tic, while Obsessive Compulsive Disorder (OCD) may cause you to laugh out of habit. Fortunately, you can learn to overcome these behaviors, though it is difficult. Cognitive-behavioral therapy can help you learn to recognize when you may laugh and learn to control it.

TL;DR in Vietnamese:
Nói chuyện với chuyên gia trị liệu để giải quyết các vấn đề sâu hơn. Hỏi xem bạn có thể dùng thuốc ức chế tái hấp thu có chọn lọc serotonin (SSRI) không. Tiếp nhận liệu pháp nhận thức - hành vi nếu bạn mắc hội chứng Tourette hoặc rối loạn ám ảnh cưỡng chế.