Cold sores are common viral infections that appear as tiny, fluid-filled blisters on and around the lips. Another name for cold sores is fever blisters, and they are typically grouped in patches. After the blisters break, there’s always a formation of scabs that lasts for several days.
In most cases, cold sores heal in two to three weeks without leaving any prominent scar. These viruses can spread from one individual to another via close contact like kissing, and they are caused by HSV-1, which is known as herpes simplex virus type 1. In less common cases, it could also be due to the HSV-2, which is called the herpes simplex virus type 2.
There are no specific cures for cold sores. However, they can be managed, and antiviral pills can help heal them more quickly. This article reviews some of the helpful home treatments for cold sore.
Aloe vera gels from aloe vera are available in various health stores, and they can be grown as houseplants. Research linking aloe vera to a cold sore are quite limited. However, in vitro 2016 study discovered that the anti-inflammatory and antiviral effects could have specific inhibitory effects. 
Aloe vera is well-known to contain very healthful plant compounds. It contains vitamins, minerals, amino acids, and antioxidants. The presence of antioxidants is to help inhibit the growth of some bacteria that can cause severe infections.
Generally, aloe vera is well known for its antibacterial, antiviral, and antiseptic properties, making it helpful for healing wounds and treating skin problems. Aloe vera may also help in the reduction of constipation due to the latex.