Medicine for dry cough?

what is the medication for the dry cough ?
the dry  cough is treated by an anti tussive agents such as guaifenesin and ambroxol then in cases of dry ones a mucolitic agent is a good choice such as bromhexine 
what are the causes of the dry cough ?

• upper respiratory tract infection 
• penumonia 
• tuberculosis '
• pulmonary edema 
• pulmonary embolism 
• malignancies 
• laryngitis 
• esophegitis 
• gastric esophageal  reflux disease 
• flue and influenza 
• covid19 

what are the daignostic tests ?
the doctor will do a clinicalo examination and take his past medical history , cest x ray and chest CAT Scan ,  PCR blood test to check for cvid 19 infection ,  ECG  of the heart and a complete blood count to check for the signs of infection in the blood 
what is the advice ?
we advice you to call the nerby covid 19 help team in your country to check for covid19 specially that the numbers of infected people in UAE is high nowdays