help please

[allecc]

I was tested at a St. John's Lab for HIV in September, 4 months after my possible exposure and the blood test came back negative. Today, 6 months after my exposure I woke up and had a rash on the back of my left hand of a few bumps that itched really bad. Later in the day my chest and shoulder started itching. Could the blood test be wrong? I haven't had sex for the past 6 months so there's no new risk of exposure but still worried because online said that it could take up to 6 months to show up in some people's blood. please help me!!!

[PJ2239]

You are negative, the test prove that, work with your Doctor for your other health concerns.

[Ecofreak2016]

Could be something else like eczema. My doctor told me it starts on your hands.

[PJ2239]

A test at or after 3 months is considered conclusive.

There is almost no chance of receiving a false negative antibody test result after 12 weeks post-exposure since current testing methods are extremely sensitive. Reasons for requiring testing after 12 weeks may include a pre-existing immunodeficiency, receiving medication to prevent an HIV infection (PEP), or receiving chemotherapy for certain cancers.
Previously, older tests were less sensitive, which necessitated waiting a longer time for individuals to develop the level of antibodies needed to produce a reactive/positive result. Current testing methods are much more sensitive, which is why current guidelines state that a negative test result obtained at or after 12 weeks post-exposure is conclusive for no current HIV infection.
Given that your test results show conclusively that you do not have HIV, your symptoms are caused by something else.