I started using a serum twice a day nearly a week ago. Vichy Aqualia. I've started getting little spots. I've had this reaction before to loads of things, moisturisers and foundations mainly. Is my skin adjusting and should I persevere? Or just give up? My skin is dehydrated and despite hot cloth cleansing, drinking plenty of water, moisturising and taking a fish oil supplement, it's dull and dry and I'm struggling to get moisture into it. 