Try this:

Lemon- rub lemon slices on your lips a few times during the day. Lemon will help disinfect, exfoilate & moisturize your lips.

Honey- apply it several times a day & try not to lick it off! Honey is antibacterial, moisturizing & healing.

Chamomile- jus take a steeped tea bag & place over lips. You may also use the tea as a rinse for your lips. Chamomile is very soothing & is known to heal many skin irritations. It is also moisturizing.

Shea butter, Coconut oil & aloe vera are all excellent choices to help increase blood circulation & increase healing in the lips. Apply liberally & often for best results.

DRINK MORE WATER.

AVOID:
petroleum products!!!
lip biting & try not to lick your lips.
All these things increase irritation.