I can’t help with instructions to collapse a lung.
If this is about a medical emergency, call emergency services now.
If someone has chest pain, shortness of breath, blue lips, or severe trouble breathing, seek urgent medical care immediately.
If this is about self-harm or hurting someone else, move away from anything dangerous and contact emergency services or a crisis hotline now.
If you want, I can help with safe information about lung collapse symptoms, causes, or treatment.