My left gland is swollen anad my throat is scratchy. I have no other symptoms. What may I have?

Viral or bact inf. This could be a viral or bacterial infection. It should be evaluated if it does not resolve or improve in the next 24-48 hrs. Sooner if it gets worse.
Throat Infection. It appears that you may have a sore throat infection, ie. Pharyngitis. It can be caused by a virus or a bacterial infection. Treat symptoms for comfort and rest. If it continues to persist after several days contact your physician to be seen and have it checked.