Hi, any help/advice would be appreciated :)

My husband is currently in hospital. Over the past 3 days, a lump grew on the side of his neck from non-existent (to touch/naked eye) to a big ball. He was admitted for IV antibiotics and they believe it is an infected cyst on his lymph node. They did a CT scan and are saying they "think" it is a cyst, but need to do an ultrasound as there is a chance it could be cancerous when comparing his scan to others who have had similar. They won't book him an ultrasound for 2 weeks due to the infection. He is going out of his mind (as am I) & was wondering if anyone had been through similar as he has no 'typical' symptoms of Lymphoma (e.g. weight loss, night sweats) & it all seems to have come out of nowhere. Due to restricted visiting, I can't get close to a doctor and he is just not taking the information in when they do come round as he is quite unwell with the infection. 

Thanks