Most people on free medication for AIDS can live their whole lives as normal. AIDS is caused by infection with HIV, a sexually transmitted disease characterized by severe immunodeficiency. HIV attacks the CD4T lymphocytes, the most important cells in the immune system, causing the body to lose its immune function. Patients may experience symptoms such as chills and fever, swollen lymph nodes, easy to lose weight, coughing and difficulty in breathing. Currently there is no cure for AIDS, but there are drugs to inhibit HIV replication and amplification, all of which are distributed free of charge. HIV antiviral drugs are mainly nucleoside reverse transcriptase inhibitors, commonly used are lamivudine, tenofovir, emtricitabine and so on. Non-nucleoside reverse transcriptase inhibitors, such as nevirapine and efavirenz. Protease inhibitors, such as ritonavir and indinavir. Generally speaking, taking medication after HIV infection does not affect life expectancy. If you are infected with HIV, it is important to register for medication and systematic antiretroviral treatment at your local CDC, and to take your medication regularly under your doctor’s supervision.