Chancroid is a sexually transmitted acute ulcerative disease caused by the short gram-negative bacillus Haemophilus ducreyi

-it facilitates the transmission of HIV 

Symptoms & signs 

Chancre begins as a soft papule surrounded by erythema, later becomes an ulcer covered by yellowish exudate

-Painful inguinal adenitis (bubo) occurs

Diagnosis 

Culture, DNA Amplification

Treatment 

Azithromycin, Ceftriaxone, erythromycin, ciprofloxacin