Excessive or inappropriate giggling or "silly laughter" can have different causes and corresponding treatments.
If it's due to nervousness, relaxation techniques such as deep - breathing exercises can be helpful. Breathe in slowly through your nose, hold your breath for a few seconds, and then exhale slowly through your mouth. Do this several times when you feel the urge to giggle.
If it's a possible symptom of a neurological disorder, it's essential to see a neurologist. The doctor may conduct tests to determine if there's an underlying condition like a seizure disorder or a tic disorder. In such cases, appropriate medications might be prescribed to control the abnormal behavior.
Psychological counseling can also be beneficial if the giggling is related to emotional or psychological factors such as stress or anxiety. The counselor can help you understand and manage your emotions better.