Heavy Cough from last 20 days. Cough!

Sir my Problem is..  The day was 14 October from that day I suffer from high fever and Heavy Cough.I Consulted a doctor which prescribed me Calpol and Zedosef O for fever and Macberry Syrup for cough after 5 days I recovered from fever but still have high cough again visited that Doctor and then he prescribed me Ascoril LS Syrup and Mega CV 625 Tab I took that medicine for 5 days I get little bit relief from cough but again after completing my course with in 2 days I have high Cough again I visited that Doctor this time he told me I may have some allergy cough and he prescribed me Monticope Tab and Azimax 500 Tab and Mecberry Dx Syrup I took this medicine too but this medicine couldn't heel me I didn't find any relief and also after taking this medicine I when I go for toilet I feel high inflammation in my anus though which urine flow I don't know whether this inflammation is from taking that medicine or by other problems and usually I mustuburate once a daily.I still have High Cough