As a result of the 20 July 1944 assassination attempt on Hitler – in which he survived a bomb explosion at his Wolf's Lair headquarters – both of the dictator's eardrums were punctured, and he had numerous superficial wounds, including blisters, burns and 200 wood splinters on his hands and legs, cuts on his forehead, abrasions and swelling on his left arm, and a right arm that was swollen, painful and difficult to raise, causing him to use his left hand to greet Benito Mussolini, who arrived that day for a previously scheduled summit meeting. The punctured eardrums were the most serious of these injuries. Weeks later, blood was still seeping through Hitler's bandages, and he suffered sharp pain in the right ear, as well as hearing loss. The eardrums took several weeks to heal, during which Hitler suffered from dizziness and a loss of balance which made him hew to the right when walking. In addition, his blood pressure was high. One unusual result was that the trembling in Hitler's hands and left leg, which had increasingly afflicted him for sometime, abated for a time after the explosion, which Morell attributed to nervous shock; they returned in mid-September.