Stomach Cancer Treatment in Mumbai

Stomach (gastric) cancer often begins quietly, with indigestion, feeling full early, loss of appetite or weight, or black stools. Once it is diagnosed, treatment usually combines surgery with chemotherapy, and eating becomes one of the biggest everyday challenges. This guide explains how stomach cancer is usually treated in Mumbai, the side effects people commonly face, and how complementary homeopathic care at Welling Homeopathy can support you alongside treatment.

Written by Dr. Sourabh Welling, founder of Welling Homeopathy, who has over 25 years of experience treating patients. Last updated 22 October 2026. This article is for general information and does not replace a medical assessment.

This page explains what treatment usually involves, the side effects people commonly face, and how complementary homeopathic cancer care at Welling Homeopathy can sit alongside – never in place of – the plan made by your oncology team.

How stomach cancer is usually treated

Treatment is planned by a surgical oncologist, medical oncologist and sometimes a radiation oncologist, and depends on the stage, the position of the tumour and tests on the cancer such as HER2 and PD-L1 status. The main components are:

• Endoscopic resection – for a very early cancer confined to the inner lining, removed through an endoscope.
• Surgery – partial (subtotal) or total gastrectomy with removal of nearby lymph nodes, and reconstruction so that food can pass into the intestine.
• Chemotherapy – combinations such as FLOT given before and after surgery, or after surgery, and for advanced cancer.
• Chemoradiation – radiation with chemotherapy after surgery in selected patients.
• Targeted therapy and immunotherapy – trastuzumab for HER2-positive cancer and checkpoint inhibitors such as nivolumab or pembrolizumab for selected advanced cancers.
• Nutrition support and palliative procedures – dietitian guidance, feeding tubes, and stents or bypass surgery to relieve blockage.

Common side effects of treatment

Side effects differ from person to person and depend on the drugs, doses and your general health. Your oncology team can often prevent or reduce many of them with medicines and supportive measures, so always report symptoms early.

Chemotherapy

• Nausea, vomiting and loss of appetite
• Diarrhoea, mouth sores and changes in taste
• Tingling or numbness in the hands and feet
• Low blood counts, with a risk of infection and tiredness
• Sore, red palms and soles with capecitabine
• Hair thinning and weight loss

Radiation therapy

• Nausea and upper abdominal discomfort
• Heartburn or reflux
• Loose stools
• Redness or soreness of the skin in the treated area
• Tiredness that builds up during the course

After gastrectomy

• Dumping syndrome – sweating, dizziness, cramps or diarrhoea soon after meals
• Feeling full after a few mouthfuls and gradual weight loss
• Low vitamin B12, iron and calcium, which need supplements and monitoring
• Bile or acid reflux
• The need to eat small meals many times a day

How complementary homeopathic care fits in

Complementary care means supportive treatment given together with your oncology treatment. At Welling Homeopathy the aim is to help you feel as well as possible during and after treatment: easing symptoms and side effects where we can, supporting appetite, energy and sleep, and helping you keep up your quality of life so that you can carry on with the treatment your doctors have planned.

What does the research say? Research on homeopathy for the side effects of cancer treatment is limited. A few small studies of particular remedies (for example for radiation skin reactions or mouth sores) have been reported, but good-quality evidence is lacking, and homeopathy has not been shown to treat or cure cancer. For this reason we use homeopathic care only as a complement, and never as a replacement for surgery, chemotherapy, radiation, targeted, hormonal or immune therapy, or for the advice of your oncologist.

ImmunoKnife™ Homeopathy Treatment Process

ImmunoKnife™ is the speciality homeopathic treatment process for cancers developed by Dr. Sourabh Welling at Welling Research Labs in Mumbai and practised at the Welling cancer clinics. Care is planned around the symptoms and side effects you are facing, such as nausea, appetite, digestion, tiredness and sleep. It is offered as supportive care around your oncology treatment, and your oncologist should always be told about it.

Over 25 years of experience treating patients

Dr. Sourabh Welling, founder of Welling Homeopathy, has been treating patients for more than 25 years, including people living with cancer and going through chemotherapy and radiation. In a first consultation he and his team take a detailed history – your diagnosis and treatment plan, your symptoms, your past health and your personality – so that supportive care is planned around you and not around a standard list.

Practical ways to feel better during treatment

• Eat six or more small meals a day, chew slowly, and keep fluids apart from meals if dumping is a problem.
• Choose protein-rich, soft foods and ask your dietitian about nutritional supplements.
• Take vitamin B12, iron and calcium exactly as your team advises after gastrectomy.
• Sit upright for an hour after eating and avoid very spicy, fried or sugary food if it causes symptoms.
• Weigh yourself weekly and tell your team if you keep losing weight.
• Tell your oncology team about every medicine and supplement you take, including homeopathic and herbal ones.

When to call your oncologist or go to hospital urgently

Do not wait for a homeopathic appointment if you have any of the following – contact your oncology team or go to the nearest hospital:

• Fever of 100.4 F (38 C) or above
• Vomiting that stops you keeping down fluids
• Black, tarry stools or vomiting blood
• Severe abdominal pain, swelling or fever after surgery, which can mean a leak
• Yellowing of the skin or eyes
• Signs of dehydration such as dizziness, very dark urine or passing little urine

Consultation in Mumbai

Dr. Sourabh Welling and the Welling team offer supportive homeopathic care for people with stomach cancer alongside their oncology treatment. You can meet us at our Mumbai clinics (see the Contact page for current addresses and hours), or consult online from wherever you are being treated. Please bring your reports, your treatment plan and a list of everything you are taking.

Frequently asked questions

What are the risk factors for stomach cancer?

Infection with H. pylori, a diet high in salted, smoked or pickled food, smoking, long-standing gastritis or reflux, obesity and a family history.

What are the early symptoms of stomach cancer?

Persistent indigestion, feeling full quickly, loss of appetite, unexplained weight loss, anaemia and black stools; see a doctor if these last more than a few weeks.

How is stomach cancer diagnosed?

With an endoscopy and biopsy, followed by CT or PET scans and tests such as HER2 on the tumour.

What can I eat after stomach surgery?

Small, frequent, protein-rich meals; a dietitian will guide you on avoiding dumping and on supplements, especially vitamin B12 after total gastrectomy.

Will I need vitamin B12 after surgery?

Often yes, particularly after a total gastrectomy, because B12 is absorbed with the help of the stomach; your team will arrange injections or supplements.

When is fever during treatment an emergency?

Fever of 100.4 F (38 C) or above, vomiting blood, black stools or severe pain needs urgent hospital care.

Learn more

• All cancer treatment guides for Mumbai
• Homeopathy Specialist for Cancer – our cancer treatment programme
• Homeopathy Treatment of Stomach Cancer
• Early Warning Signs and Symptoms of Stomach Cancer
• Exploring Best Cancer Treatment Options in Mumbai: A Comprehensive Guide

Disclaimer: this page is for information only and is not a substitute for professional medical advice, diagnosis or treatment. Homeopathy is offered as complementary, supportive care only; it is not claimed to treat or cure cancer. Please follow your oncologist’s advice and do not stop or change any prescribed treatment without consulting them.