Recurrent fevers associated with lung infections are often referred to as bronchitis or pneumonia. Intravenous medication is needed to treat the condition, which is more serious and oral medication is often not effective enough. The type of infection needs to be diagnosed, and blood tests, sputum cultures, and C-reactive protein need to be checked. If the infection is bacterial, intravenous ceftriaxone, cefoperazone or levofloxacin can be used for anti-inflammatory treatment. In the case of viral infections, intravenous ribavirin or xylazine can be used. In the case of recurrent fever due to Mycoplasma pneumoniae infection, azithromycin can be administered intravenously. In addition, for fevers that tend to be more severe, in most cases with temperatures over 39 degrees, oral ibuprofen suspension is needed for antipyretic treatment. Adults can also be treated with antipyretic pessaries or indomethacin suppositories inserted into the anus, both of which are effective.