What Can Be Done For Side Effects Of Over Dose Aleve?

Hi, may I answer your health queries right now ? Please type your query here...I took 4 Aleve within an 1 1/2 hrs one week ago, and had overdose side effects, and took benadryl for 3 days. I have continued itching; do I keep taking benadryl, or do I need to do something different? I thought the itching would have stopped by now.