Please note Im visiting a third world country with no access to any doctors where I am, so would appreciate a direct answer my question. I've recently had severe sunburn (8+ hours in sun with sunblock that didnt work as expected, even after re-application). Whilst I'm aware of the extensive side-effects, I was forced to use an old prescription of Prednisolone I had from before to assist in minor but necessary relief of symptoms of pain. So far I've taken 75mg yesterday, and 75mg today. I also have mefenamic acid which I believe may also work due to it being an NSAID, however I also realize there are dangerous interactions with the Prednisolone. Could anyone advise how soon after my last dosage of Prednisolone I can begin taking the mefenamic acid? I've only been taking the Prednisolone for 2 days, with a total overall dosage of 150mg (75mg per day). Thanks.