The best home remedy for a summer cold and cough includes staying hydrated with plenty of fluids, such as water, herbal teas, and broths. Consuming honey and lemon in warm water can soothe the throat and reduce coughing. Inhaling steam with a few drops of eucalyptus oil helps clear nasal congestion. Gargling with salt water can relieve a sore throat. Incorporating ginger, garlic, and turmeric into your diet boosts immunity. Rest and adequate sleep are crucial for recovery. Always consult a healthcare professional if symptoms persist.