Will getting the HPV vaccine such as Gardasil 9 helps to lower the viral load of other HR HPV that has been tested positive as well?

No. There are more than 100 different strains of the Human Papilloma Virus (HPV). Some of them are known to cause Genital Warts, which is an STI, whereas others are linked to skin warts on the feet, fingers etc, but are not STI. HPV that causes genital warts are usually spread by direct skin-to-skin contact during sexual exposure (vaginal, anal and oral) or even heavy petting. The transmission occurs when warts are present but is also possible even when there are no visible signs. There are individuals who carry the virus for months and years but do not show signs.

The Gardasil 9 vaccination provides protection against cervical cancer as well as warts. When a medication or injection is approved by the government, it relies on research to support the claims made by the medications. In this case, the claim is that: In the few thousands of patients that the company gave the vaccine to, these girls were between 9 to 26 years old. And according to the research, the injection did reach the outcomes that it claims. And hence, this is called the "label indication".