Spiral Wound gaskets can be fabricated of any metal which is available in thin strip and which can be welded; therefore they can be used against virtually any corrosive medium dependent upon the choice of the metal and filler.
Theoretically, it is no longer contagious when there is no more fluid leaking from the sore, and no new blisters are forming. However, I always assume that a cold sore is contagious until it is completely healed, and to the best of my knowledge I've never transmitted the virus to anyone else. Abreva is a very good remedy. If applied when you first feel the tingle you can actually prevent the cold sore from erupting into blisters.
1 Children and adults are not contagious 24 hours after starting antibiotic treatment for strep throat caused by bacteria. 2  The child or adult can return to school (day care) or work after this period of time while the person is taking antibiotics.onsillitis Medical and Surgical Treatment. Because most sore throats are caused by viruses, antibiotics are not routinely needed.