 [ Symptoms ] can an allergy develop into cold  i had allergic reactions a few days back with running nose cough sore throatnot usual symptom usually it goes away on its own but this time it will not so i took my anti allergic med the running nose and sore throat got better but the cough developed more [ Disease ] hi you have a chest problem from a cold a cold is not an allergy a cold comes from a virus if you think its getting worst see your doctor good luck