Sinus infections usually begin with the symptoms of a cold (for example, a runny nose, occasional cough and/or mild fever), and then develop into pain and pressure in the sinus cavities. About 7 to 10 days after initial cold-like symptoms other symptoms develop that suggest you may have a sinus infection.
The Ruins of Sescheron. The Ruins of Sescheron are available in the Adventure Mode of Diablo III. Specifically in Act III, near the Arreat Crater. They were released as part of patch 2.3. The area is designed to have a melancholy feel to it, with elements such as funerary art and pyres.
Inside the Unknown Depths. Fighting in the Unknown Depths. The Unknown Depths is a one-level dungeon found in The Terminus in Act II of Diablo III. Player(s) must cross it and open the Shadow Lock in the end, then leaving through the portal.