If your friend is experiencing nasal congestion and drainage, there are a few options he could try. First, if over-the-counter decongestants are not helping, he could try taking an antihistamine like Claritin, Aerius, or Reactine, which can help reduce the symptoms described. He should consult with a pharmacist to ensure these medications are suitable for his condition. Using a saline solution like Hydrasense or sinus Rinse may also help decrease congestion and drainage. Keeping a journal to track symptoms and potential triggers can also be beneficial in managing the situation. Hope this information is helpful, and feel free to ask for more assistance if needed.