well you should use over the counter products such as creams (don't ever use any thing liquid on infections.) you can use Neosporen,benedrill creams, or even wipes that remove and prevent infection on skin you could normally find them in a emergency kit.
the first line of defence is you immune systom,lungs,brain,musils,sometimes your bones.
*****I AM IMPROVING THIS ANSWER: THE FIRST LINE OF DEFENSE IS YOUR SKIN AND MUCOUS MEMBRANES :)
Well on a test i chose skin and it was wrong.... so go with the first one :)
Its better to say INTACT skin and mucous membranes
skin
Your skin is the first line of defense.
when it gets past the first line (the skin)
The body's first line of defense against infection is the skin.
The first line of defense includes the skin, breathing passage, mouth and stomach.
In some of the more advanced plants resin is present and is released if the plant is injured in any way. The resin works as and antiseptic and hardens upon contact with the air to close the wound.
Lysozymes
Your skin is the first line of defense.
when it gets past the first line (the skin)
The integumentary system is one of the first lines of defense against infection. It provides a physical and chemical barrier against the entry of pathogens.
The body's first line of defense against infection is the skin.
Skin
its killer T cells
Well, you first get infected from a scratch or bite, then the infection spreads into the bloodstream, getting by the first line of defence. The second line of defence, would be the white blood cells. They try overcome or "swallow" the infection. the third line of defense, is the anitgens. If all else fails, your f*cked.
The first line of defense against infection or contamination of I.V. products is by hand washing.
the integumentary system is the skin and the bodys first line of defense.
hydrogen peroxide
The bodies first defence against a virus is your skin. The body first defense against a virus is Mucus. Mucus