Mycoplasma infection is still weakly positive after 15 days of treatment, you should actively take medication, adjust lifestyle habits, dietary adjustments and other ways of combining treatment. 1. medication: mycoplasma infection is still weak positive after 15 days of treatment can be targeted according to the different parts of the infection. Mycoplasma infections in the lungs can be treated with erythromycin, azithromycin and other drugs as prescribed by the doctor; Mycoplasma infections in the genitals can be treated with doxycycline, minocycline and other drugs as prescribed by the doctor. 2. Adjustment of habits: appropriate jogging, tai chi and other physical exercise, improve the body’s immunity, can promote the recovery of the disease. 3. Dietary adjustments: pay attention to keep the diet of light and balanced nutrition, avoid eating too spicy, greasy and other stimulating food, to avoid affecting the recovery of the disease. Mycoplasma infection is still weakly positive after 15 days of treatment, you need to actively listen to the advice of a professional doctor for treatment.