2. Sore Throat
A sore throat is among the most common symptoms of mono in teenagers and young adults. This usually lasts for just several days, though it may last for up to two weeks. The throat may appear red on inspection and might become swollen, potentially causing wheezing, coughing and mucus.
Those affected by a sore throat may be able to nullify the symptoms somewhat by using cough sweets and medicine, by using steam inhalation to reduce swelling and by trying to withstand the temptation to cough as far as possible.