Benadryl
Benadryl
This powerful antihistamine can treat pain and itching caused by multiple allergens. It also can help relieve cold symptoms, insomnia, and motion sickness.
$50
Rare but possible side effects: dry mouth, nose, and throat; drowsiness, dizziness, nausea, vomiting, loss of appetite, constipation, pounding heartbeats or fluttering in the chest, painful or difficulty or no urination, confusion, tightness in neck or jaw, with possible uncontrollable movements of your tongue.