Topical drugs for vasodilating mainly include nitroglycerin patch, compound dexamethasone ointment, minoxidil application and so on. 1. Nitroglycerin patch: Nitroglycerin patch is mainly composed of nitroglycerin, which is applied to the skin of the left anterior chest, has the effect of relaxing the smooth muscle of blood vessels and dilating blood vessels, and can effectively prevent the attack of chronic angina pectoris. 2. Compound Dexamethasone Ointment: Compound Dexamethasone Ointment is a kind of hormone drug, which has strong anti-inflammatory and anti-allergic effects, and at the same time, it also has a certain effect on the dilation of capillaries on the skin. 3. Minoxidil application: Minoxidil is a peripheral vasodilator, local use can stimulate hair growth, commonly used in the treatment of male pattern baldness and baldness. Of course, there are many other types of topical medications that can dilate blood vessels, so you should consult a medical professional for specific medications.