Hi welcome to the health care magic On posterior pharynx you are seeing prominent vessel, that is because of inflammation... In inflammation vasodilation occurs and so you can see it You are having pharyngitis or upper respiratory tract infection You can be prescribed decongestant tablet like levocetrizine 5 mg OD for 5 days Salt water gargle done with warm water three times a Steam inhalation done three times a day Take vitamin C lozenges If no improvement than work up needed as follow.. _Auscultation _CBC _sputum examination _chest x ray Hope this will help you Consult physician for examination and discuss your case