White toungue. Result is conclusive?

Yes, A Negative HIV by ELISA test mostly conveys a absence of infection, but the action which prompted to do this test must be stopped in those days. say if a person has unprotected sex and gets worried and does HIV test, it may be negative as he is not infected. But if he continues to do the unsafe sex practice then that is not going to ever make him feel safe. HIV has a window period of 6 months. Do a HIV test 6 months after yout exposure, and in the interim period do not indulge in any unsafe activity. have safe sex using condoms. This will prevent more incoming infections. If at the end of 6 months your HIV test ( ELISA or Western blot ) comes negative, you are "saved" and have not been infected in the unsafe sex episode. BUT this should be a lesson and make you NOT go for unsafe sex practices.