10 Best Infectious Disease Treatment doctors in Bapujee Nagar

Several factors could contribute to weight loss­. Perhaps you're undere­ating or sedentary. An underlying condition might e­xist. Ensure you consume a balanced die­t rich in nutrients. Engage in regular physical activity. If struggle­s persist, consult a nutritionist. 

It's good that your father's constipation is better now. However, losing weight after a viral infection is expected as the body manages to defend against the infection. Mucous membrane pain and swelling might be due to the inflammation response of the body to the virus. Since the constipation is better and the fever is gone, it's okay. If the weight loss persists or if any new symptoms develop, see your doctor.

If you're experiencing severe body aches, then pls consult with a professional for proper evaluation and treatment. In the meantime, you can try rest, applying heat or cold packs, taking over the counter pain relievers, gentle stretching, staying hydrated, practicing good posture, and managing stress. These are just general suggestions.. But I recommend personalized advice from a doctor.