ah! weather shifts can do that yes. especially if you have combination skin problems.
moisturize! keep hydrated too. i've found that if i drink plenty of water daily my monthly zit problem does not get too bad either.
i still recommend you keep away from all cosmetic products till your skin has recovered. better to eliminate as many as possible sources of irritation than to keep on second guessing yourself.
_________________
"Reality is that which, when you cease to believe, continues to exist." ? Philip K Dick