It treat a wide variety of conditions!  The below links will take you through to fact sheets provided by the British Acupuncture Council outlining the efficacy of Chinese Medicine and acupuncture:

Acne

Allergic rhinitis
Anxiety
Arrhythmias and Heart Failure
Asthma
Back pain
Cancer care
Carpal tunnel syndrome
Chronic fatigue syndrome
Chronic pain
Colds and flu
Coronary heart disease
Cystitis
Dementia
Dentistry
Depression
Dysmenorrhoea
Eczema and Psoriasis
Endometriosis
Facial pain
Female fertility
Female fertility & IVF briefing paper
Fibromyalgia
Frozen shoulder
Gastrointestinal tract disorders
Gout
Headache
Herpes
HIV infection
Hypertension
Insomnia
Irritable bowel syndrome (IBS)
Kidney stones
Male infertility
Menopausal symptoms
Migraines
Multiple sclerosis
Nausea and vomiting
Neck pain
Neuropathic pain
Obesity
Obstetrics
Osteoarthritis
Palliative care
Parkinson’s disease
PCOS
Post-operative pain
Post-traumatic stress disorder
Premenstrual syndrome
Puerperium
Raynaud’s
Research digest
Rheumatoid arthritis
Sciatica
Sinusitis
Sports Injuries
Stress
Stroke
Substance misuse
Tennis elbow
Thyroid disease
Tinnitus
Type-2 Diabetes
Urinary incontinence
Vertigo