Here you have told there is pulsating pain under your ear to your face. This could be related to facial nerve pain if there is no other symptoms. You need to be careful. Don t sleep under the fan. And keep ear buds in your ear so that cold air does not go in ear and disturb the facial nerve. Also do not use cold drink, do not take ice cream as well after brushing your teeth also use only warm water for mouth wash or gargling. You can also visit a ent doctor if there is a ear pain because there could be ear infection and you need a ear drop ( anti biotic) after check up and conformation. You can use hot water bag with light heat to your painful ear or where you feel the pulse starting from your ear for soothing effect on nerve. Take one pain killer and sleep well if there is headache. Also keep track on blood pressure. It should get over in 2-3 days but at any time if you feel there is a confusion and not able to move face or talk with giddiness rush to the near by hospital for further treatment and management. Here I have given general guideline with out examination. How ever if the symptoms are too severe do visit your doctor for proper check up. Take care.