When considering medication for swelling in the feet, it is important to understand the cause of the swelling before starting any treatment. Hetrazan (Diethylcarbamazine) is primarily used to treat certain parasitic infections, such as filariasis, and is not typically prescribed for general swelling.

• Swelling in the feet lasting three months should be evaluated by a healthcare professional to determine the underlying cause, which could range from heart, kidney, or liver issues to venous insufficiency or lymphedema.

• Taking Hetrazan without a confirmed diagnosis of a parasitic infection may not be effective and could cause unnecessary side effects.

• It is important to consult a doctor who can perform the necessary examinations and tests to identify the cause of your swelling and recommend appropriate treatment.

Please avoid self-medicating and seek medical advice to ensure safe and effective care for your condition.To narrow down potential causes, we will need some more information.I understand you have swelling in your feet. Please tell me your age and gender.