Is it okay to use interferon for three months?
Generally, whether a three-month-old infant can use interferon depends on the specific condition and physical status, which must be determined by a doctor. Interferon may be used when there is a clear indication and no contraindications, but should not be used if there are no indications or if contraindications exist. If in doubt, it is recommended to consult a doctor in advance. The detailed analysis is as follows:

If a three-month-old infant has a clearly defined disease requiring interferon treatment, and after medical evaluation the doctor determines that the benefits of using interferon outweigh the risks, and the child has no history of allergies, no severe liver or kidney dysfunction, and no serious infections or other contraindications, interferon may be administered under medical supervision. In such cases, dosage and frequency must strictly follow the doctor's instructions.
If a three-month-old infant does not have a clear medical condition indicating interferon use, or has contraindications such as severe allergic constitution, serious heart or lung insufficiency, or uncontrolled severe infection, interferon should not be used. Infants' immune systems and organ functions are not yet fully developed; indiscriminate use may cause adverse reactions (such as fever, vomiting, liver damage) and could worsen existing conditions, negatively affecting the child’s health.
Prior to administering interferon to a three-month-old infant, a comprehensive evaluation by a qualified physician is mandatory—self-purchasing and use without medical guidance is strictly prohibited. During treatment, closely monitor the infant's response. If abnormal symptoms occur—such as persistent crying, prolonged fever, or decreased appetite—discontinue the drug immediately and seek medical attention promptly.