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.
Fever Blister Causes and Risk Factors. A fever blister develops as a result of the herpes simplex virus. HSV-1 is a rash of the skin and mucous membranes (in particular, the lips). Itâs characterized by irritation, reddening of the skin and blisters that can cause a burning pain. Itâs harmless, but often annoying, and it usually heals within 10 days.