Aspirin, which contains salicylates, has been implicated in the development of Reye Syndrome, an uncommon, but serious complication of viral illnesses, such as colds, in children and young adults. Side effects are rare if taken as directed. Generic ibuprofen is fine. Do not use if allergic to aspirin. There are several different active ingredients that will relieve nasal congestion.
Pseudoephedrine is one of the most common.
It will NOT make you drowsy because it does not contain an antihistamine. Do not take before bed, switch to actifed or check with a doctor or nurse. Antihistamines often cause drowsiness and are often found in OTC products designed to relieve cold and allergy symptoms. Examples of antihistamines include diphenhydramine hydrochloride chlorpheniramine, and clemastine fumarate. Side effects include dizziness, nervousness, sleeplessness, and heart palpitations.