If you pop the blisters on a cold sore will anything happen?

what are good meds for taking care of it beside Abreva?

The cold sore will spread to where ever the fluid runs to. If you insist on popping them (not a good idea) keep a tissue close enough that the fluid from them can't run anywhere except onto the tissue then be sure to put something on it to dry it up like Campho Phenique (sp?) or Abreva. Blistex (the cream ) is good as is anything with camphor in it.

The cause for pimples are many and not only adolescence as
popularly believed. Chronic constipation is one major cause,
the food we eat plays a very important role. You will have
to cut down the fried food, chocolates, cheese and aerated
drinks. Eat a lot of fresh fruits and green vegetables with
a lot of water. Instead of washing the face with soap, use
orange peel powder. Dry Orange peels in the shade for 4-5
days. Powder finely and store. Wash your face with this 2-3
times a day. It clears the face and feels very refreshing.
more tips http://acnecaretipz.blogspot.com

The sore is already infected. When you pop it you leave it open to even more infection, so don't do this. Besides that, the infected sore hurts like hell.

It can spread the infection to another part of your lip (or even another part of your face), and it will keep it from healing well. Go get some ABREVA - it's at every drug store in America, and it works really fast.

nothing bad will happen, it will just hurt and let out ooze.