Chancroid

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This is an acute, localized, contagious disease characterised by painful genital ulcers and suppurative inguinal lymph nodes. The causative organism is Haemophilus ducreyi a short, slender, gram-negative bacillus with rounded ends and usually found in chains or groups.
Clinical Features
The incubation period is 3 to 7 days. Small, painful papules rapidly break down to become shallow ulcers with ragged undermined edges. The ulcers, which vary in size and often coalescing, are shallow, non-indurated, painful and surround ed by a reddish border. The inguinal lymph nodes become enlarged, tender and matted, forming a fluctuant abscess (Bubo) in the groin. The skin over the abscess becomes red and shiny and may break down to form a sinus. Chancroid may coexist with other causes of genital ulcer.
Complications

• Phimosis
• Urethral stricture
• Urethral fistula

Severe tissue destruction leading to a phagedenic ulcer which may grow rapidly and cause auto amputation of the penis. Biopsy the ulcer to distinguish from squamous cell carcinoma.
Treatment Ciprofloxacin 500mg twice daily orally for three days.
OR
Erythromycin 500mg orally 6 hourly for 7 days