I ve been sick for a month I have a strip down the back of my throats that goes from being yellow to white sometimes and I have to cough it up it s continuous and my lymph nodes are swollen and my tonsils I was tested for strep but it came back negative but I still wasn t feeling well and was put on culavulin and amoxicillin and had a reaction so I stopped the antibiotics but it seems as though the infection has relapsed