Sativex has been approved in the U.K for treatment of MS, and has shown promise in human subjects for treatment of cancer pain and neuropathic pain. GW is also developing a pure CBD extract known as Epidiolex, which is undergoing FDA âorphan drugâ studies for treatment of pediatric epilepsy.
Fever Blisters (aka Cold Sores) 1  develop on the outside of the mouth, usually along the edge of the lips. 2  are contagious until they scab over and heal completely. 3  appear as red, swollen blisters until they break, ooze and form a crust.  generally heal within 10 1  days. caused by herpes simplex virus- 1.
Cold sores or fever blisters are caused by the herpes simplex virus and are usually relatively easy to identify. To view pictures of the herpes virus (including cold sores and mouth herpes) visit our Herpes Pictures page. There is another condition which can cause ulcers inside the mouth known as Canker sores.