Flu season is, unfortunately, upon us. You can start by arming yourself with plenty of fluids, boxes of tissues, and an arsenal of pain relievers, cough expectorants, and nasal decongestants. Better yet, take it one step further and sweat out the toxins from the hot and humid comfort of your own personal sauna or steam rooms. Here, a few apartments that have you covered.

At 245 Seventh Avenue, a three-bedroom, two-and-a-half-bath penthouse (yours for $9.85 million) features a spa-inspired limestone bathroom with a glass-enclosed double steam shower, plus heated marble mosaic flooring and towel bars, and a Jacuzzi soaking tub, so the whole family can soothe their stuffy heads together.

The finished basement of this five-bedroom, three-bath home at 8915 Shore Road in Fort Hamilton, Brooklyn (listed at $1.995 million) features a sauna and steam shower: the perfect place to unwind and steam your sinuses after a day battling a blocked nose.

The master en-suite of this loft-like four-bedroom, three-and-a-half-bath condo at 135 West 70th Street (priced at $3.95 million) is decked out with an enormous dressing room, plus a bathroom with separate areas for the soaking tub, rainforest shower (outfitted by WaterWorks), and a sauna.

For those with enough energy for a workout while battling colds and flu, this sauna within a six-bedroom townhouse at 3 East 94th Street (asking price $29.5 million) is conveniently located adjacent to a fully equipped ground-floor gym.

Finally, at 50 East 73rd Street, a 10-room townhouse (for rent at $55,000/month), the sauna is located off a ground-floor recreation room/guest bedroom, making it a perfect sick bay for those wanting or needing to be quarantined from a hypochondriacal family.