dealing with crepitus in the knee can be managed using many approaches. On the one hand, regular low-impact exercises and maintaining a healthy weight can assist in strengthening the muscles that support your knee. Physical therapy may help to enhance the joint stability and flexibility. Other recommendations might include avoiding activities that make the noise worse and to use good joint protection techniques. If crepitus is persistent or accompanied by pain anyway swelling it’s really important to consider a professional health care provider for the evaluation and designing of specific treatment procedures.

Knee crepitus can be from multiple causes. Painless crepitus can be ignored. So, I won't advice for crepitus knee treatment as such.. Crepitus from knee cap problems can be cured with hip and knee strengthening. Crepitus from cartilage irregularities or loose pieces often need minor keyhole surgery. Painful crepitus from arthritis is initially treated with physical therapy and surgery when therapy stops helping. 

Crepitus, or the cracking and popping sound that sometimes happens when you move your knee, is usually harmless. However, if the crepitus is accompanied by pain, swelling, or instability, it may be a sign of a more serious problem and you should see a doctor for crepitus treatment if required and sugested by the doctor.

Knee crepitus with pain or swelling is due to tissue injury causing inflammation around knee joint.
Acupuncture helps in treating inflammation almost immediately, anti inflammatory points, body balancing points, Moxibustion, cupping, diet and exercise recommendations helps in knee crepitus recovery quickly.