I'm sorry to hear that you're experiencing severe joint pain in your foot. Severe joint pain can have various causes, and it’s important to get a proper evaluation to determine the underlying issue and appropriate treatment.

• You should see an orthopedic specialist or a rheumatologist promptly to assess the cause of your foot joint pain.
• Avoid putting excessive weight or strain on the affected foot until you have a diagnosis.
• Over-the-counter pain relief like acetaminophen or NSAIDs (nonsteroidal anti-inflammatory drugs) may help temporarily, but only use them as directed and after consulting a doctor.
• If the pain is accompanied by swelling, redness, warmth, fever, or inability to move the foot, seek emergency care immediately by calling Apollo Emergency at 1066.
• Based on your symptoms, a doctor might consider conditions like osteoarthritis, gout, infection, or injury and may recommend imaging or blood tests.

If you want, I can explain more about possible causes or treatments for joint pain. Please consult a specialist doctor soon for a thorough evaluation and personalized care.To narrow down potential causes, we will need some more information.Please tell me your age and gender.