Inclusion criteria
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1. Patients with stage III-IV colon cancer confirmed by pathology or cytology;
2. Patients who received oxaliplatin chemotherapy for less than or equal to 2 cycles within 3 months before enrollment, and had peripheral neuropathy;
3. Patients with peripheral neurotoxicity of grade 2 or higher assessed according to the NCI-CTCAE (v5.0) classification of peripheral neurotoxicity;
4. Plan to continue to receive oxaliplatin chemotherapy for at least 4 cycles;
5. Aged >= 18 and <= 80 years, regardless of gender;
6. ECOG PS score 0-2, and life expectancy >= 12 weeks;
7. The function of bone marrow, heart, liver, kidney and other organs is basically normal, meeting the following standards:
(1) WBC >= 4.0 x 10^9 /L and <= 15 x 10^9 /L;
(2) The absolute value of neutrophil count (ANC) >= 1.5 x 10^9 /L;
(3) Hemoglobin (Hb) >= 80 g/L;
(4) Platelet count (PLT) >= 70 x 10^9 /L;
(5) APTT <= 1.5 times of upper limits of normal (ULN) and INR or PT <= 1.5 times of ULN (no anticoagulation treatment);
(6) AST and ALT <= 1.5 times of ULN (if there is tumor liver metastasis, < 5 times of ULN);
(7) TBIL <= 1.5 times of ULN;
(8) Cr <= 1.5 times of ULN, and CrCl >= 60 ml / min (Cockcroft Gault formula);
8. Those who fully understand this study and voluntarily sign the informed consent form, with good compliance.
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Exclusion criteria:
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1. Previously received other drugs that may cause neurotoxicity except oxaliplatin, such as cisplatin, carboplatin, paclitaxel, docetaxel, thalidomide, procarbazide, cytarabine, bortezomib, etoposide, etc.;
2. Patients with neuropathy or peripheral sensory abnormality caused by other reasons, such as diabetes, tumor craniocerebral metastasis, severe electrolyte disorder, severe cervical spondylosis, etc.;
3. Received acupuncture treatment within 3 months before enrollment, or have used drugs for the treatment of neuropathic pain, such as carbazepine, phenytoin sodium, valproate sodium, gabapentin, pregabalin, venlafaxine, duloxetine, tricyclic antidepressants, etc.;
4. Patients combined with uncontrolled active infection and serious diseases of the heart, brain, liver, kidney and blood system;
5. Patients with pacemaker or defibrillator implants;
6. Those who afraid of needles or fainting during acupuncture treatment;
7. Women who are pregnant or breastfeeding, including those of childbearing age who are unwilling to use contraception;
8. Patients with cognitive impairment or mental disorders;
9. Patients with severe skin lesions.
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