grateful, that's a funny way of using the gel capsules. As you already bought them you can take one during a meal. As the food will remain some time in the stomach you can be sure the capsules will be dissolved by the acid there. For increasing the dosage if you feel ok with it have a look at the package.
If you want to switch to pure oil there are several recommendations in this post, or use the forum search (magnifier glass symbol in the header line) with 'oregano'.