What Causes Itchy Skin Rash All Over After Taking Proxalin Plus?

last nigh I drank a lot (whisky). I'm not a heavy drinker. once in a very long while. This week however, I had wine 2 days in a row and then yesterday. Before going to bed last night I took
2 pills of Praxolin-Plus (Paracetamol- 300mg Naproxeno-250mg) por the next day headache. I woke up this morning with a very heavy skin rash all over my body, it itches like an allergic reaction as well as swelling. Is it SAFE to take Benadryl-D?