It depends what kind of cold you are asking about. I would recommend searching a thesaurus: thesaurus.com is a place you could look.
overall
Substances would work
It is not advisable to use a cloth to hold back the bleeding. It is medically advisable to use the gauze.
Black. Depends on how cold. Any color except green.
2
cold war
Some alternative words to use instead of "he" include: they, it, the person, the individual, one.
you can use or , otherwise, or rather than.
a or an
traitor
like
Some words to use instead of got are Get, Gotten, Getten, have, had!
Instead of the phrase "freaked out", try:stunnedstartledalarmedpanicked
Alternative words to use instead of "fake" could be artificial, counterfeit, synthetic, or imitation.
You could use words like us, we, our, ourselves.
great
things.