Being stressed affects the immune system as well as hormone upheavals for women, and feeling under the weather aggravates them, as well as the usual, getting over a cold virus.
Eating a good diet rich in the onion / garlic family can help as they contain natural anti-viral qualities so stock up on leek and potato soup, add garlic to your fry ups etc. and making sure you get enough sleep. Natural vitamins to help are zinc, vitamin a , vitamin c and vitamin e all good for healthy skin function, as well as dabbing them with a witch hazel cold compress when they appear, can all help.
Hope you feel better soon.