Painful Sore In Throat, Under Armpits, Left Hand Side. Trouble In Talking, Swallowing, Headache. Have Puffy Eyes

Hi, I'm really worried about my husband over the last 2ish weeks he has has flu like symptom but his throat has become worse and said its the most painful sore throat he has ever had, hurts to talk and swallow with pain his glands in his neck are abit swollen n very sore, under his armpits and on left hand side of his abs under his ribs are very very tender, he has chills and sweats one minute he is cold and the next he is hot, he has a temp a little higher then normal. Aching and feeling weak, very very tired and just wanting to sleep loss of appetite and seems as though as he loosing his voice and headache is on and off but has had one everyday for last 5 days. He also has puffy eyes and they hurt thank you in advanced