Anti-tuberculosis drugs produce more organ function damage, involving multiple organs of the body, such as: neurological, digestive, urinary, and hematopoietic systems related organs. 1. The peripheral nerves are usually affected by isoniazid and ethambutol. The initial manifestation is terminal skin sensory abnormalities, several bilateral symmetrical changes, near; and finger and toe end numbness, hand and foot fever, tremor, muscle twitching, convulsions, pain, limb weakness and joint weakness, the regular amount of 0.3G/day rarely occurs, the dose increases the reaction is enhanced, malnutrition, alcoholic pregnant women and those with diabetes are easy to occur, available vitamin B6; 2, central nervous system dysfunction; to Isoniazid quinolones are common. The performance of euphoria, memory loss, inattention, etc., may also appear excitement, depression dizziness headache, insomnia, drowsiness, and even mental disorders. Therefore, epileptic patients or those with a history of psychosis can lead to seizures.3. Vestibular or cochlear nerve damage occurs mainly in aminoglycosides such as streptomycin, kanamycin, butamycin and capreomycin. The incidence is proportional to increasing age and dose. Vestibular damage manifests as vertigo, headache, nausea, and in severe cases balance disorders, which are more pronounced in dim light. Because the concentration of drugs entering the lymphatic fluid of the inner ear is higher than that of other tissues, thus causing ear damage, deafness mostly occurs after persistent tinnitus ethambutol (EB) has an inhibitory effect on the growth of Mycobacterium tuberculosis and many drug-resistant strains of bacteria, and is the most commonly used antibacterial agent among current anti-tuberculosis drugs, mainly for tuberculosis caused by drug-resistant bacteria, or patients who cannot tolerate para-aminosalicylic acid (now mostly replaced), for recurrent It is effective for recurrent tuberculosis and cavitary tuberculosis. Dosage: orally, 15 mg per kg body weight per day, commonly used in adults 750 mg per day. Side effects are mainly postbulbar optic neuritis, causing visual impairment, mostly occurring after 2 months of drug use, and can be recovered by timely discontinuation of the drug. The above is the drug mechanism of ethambutol, I do not know what I said can be understood. There are many reasons for fever, and I can’t make a conclusion without seeing the patient. If you are allergic to ethambutol, you can choose other drugs to treat it.