Widespread flooding and mounting refuse across Lagos are creating conditions that epidemiologists say sharply increase the probability of a cholera outbreak and a rise in malaria transmission. Public health physicians at the University of Ilorin Teaching Hospital note that floodwaters contaminate drinking sources with sewage, while stagnant pools become breeding grounds for mosquito vectors capable of spreading dengue and yellow fever alongside malaria. The Nigeria Hydrological Services Agency and the Nigerian Meteorological Agency have identified July through September as the period of greatest flood risk, and with Lagos generating an estimated 13,000 tonnes of waste daily, blocked drainage channels are compounding the hazard.

Against this backdrop, the Lagos State Government has disbursed N3.1 billion in compensation to over 300 property owners whose land was acquired for infrastructure projects, including roads and drainage works. Governor Babajide Sanwo-Olu described the payments as a legal and moral obligation, stressing that all claims underwent enumeration, valuation, and verification. Yet real estate stakeholders have called for an independent investigation into whether the alignment and elevation of the Lagos-Calabar Coastal Highway—diverted from its original 2006 gazetted route closer to the Atlantic—may have worsened flooding by creating a “valley effect” that impedes natural drainage from adjoining communities.

Dermatologists in Nigeria and Brazil are separately drawing attention to the skin health consequences of the humid, moisture-rich environment that flooding and poor waste management perpetuate. A professor of dermatology at the University of Benin Teaching Hospital explains that clothes left damp for days during the rainy season can harbour fungi and bacteria, raising the risk of ringworm, jock itch, and athlete’s foot, particularly among immunocompromised individuals. Brazilian clinicians, responding to a surge in post-beach fungal complaints, note that heat, sweat, and prolonged use of wet swimwear create ideal conditions for dermatophytosis and folliculitis. Meanwhile, general practitioners in the United Kingdom caution that poorly maintained air conditioning units—a common refuge from tropical heat—can circulate dust, pollen, and mould, drying out mucous membranes and triggering respiratory irritation or asthma.

Makeup professionals in Buenos Aires and São Paulo are advising clients on techniques to manage skin appearance in high-humidity settings without exacerbating irritation. Argentine maquilladora Lara Forteza recommends mixing foundation with a light moisturiser to avoid a cakey finish that accentuates lines, while her British counterpart Amanda Bell suggests replacing black eyeliner with softer tones such as chocolate brown or slate grey to maintain definition without hardening features. Brazilian dermatologists, commenting on a social media personality’s acne flare-up after weeks of daily makeup use, stress that cosmetics alone do not cause breakouts; rather, the combination of prolonged wear, accumulated oil, sweat, and inadequate cleansing obstructs pores and triggers inflammation.

With the heaviest rains still expected, the Lagos State Government has ordered immediate waste evacuation and intensified drainage clearance, but public health specialists caution that voluntary compliance with sanitation practices will be decisive. The next factual milestone is the independent technical assessment sought by property developers and engineers into the coastal highway’s drainage design, a step that could clarify whether infrastructure meant to modernise the metropolis has inadvertently amplified the very environmental pressures now threatening its residents’ health.