I'm sorry to hear that you've been experiencing mild fever, cough, and loose motions for three weeks. Persistent symptoms like these warrant careful evaluation to identify the underlying cause and receive appropriate treatment.

Here are some important steps you should take:

• Consult a doctor promptly, preferably a general physician or an infectious disease specialist, to get a thorough clinical examination.
• You may need investigations such as blood tests, stool examination, and possibly chest X-rays to determine the cause of your symptoms.
• Avoid self-medicating with over-the-counter cough syrups or antibiotics without medical advice, as inappropriate use can worsen the condition.
• Maintain good hydration by drinking plenty of fluids like water, coconut water, and oral rehydration solutions.
• Follow a light, easily digestible diet including traditional Indian foods such as khichdi, dal, steamed vegetables, and avoid spicy or oily foods until symptoms improve.
• Practice good hygiene, including frequent handwashing, to prevent spread if infectious.
• If you experience worsening symptoms such as high fever, severe abdominal pain, blood in stools, difficulty breathing, or dehydration, seek emergency medical care immediately.

Given the duration and combination of symptoms, it is important to get a professional evaluation to rule out infections or other causes.

Please consult a doctor as soon as possible for a proper diagnosis and treatment plan. If you need urgent help, you can contact emergency services at the provided number.To narrow down potential causes, we will need some more information.I understand you've been experiencing a mild fever, cough, and loose motions for the past three weeks since returning home. Please tell me your age and gender.