Babies aren’t the only ones who get heat rashes — so do women who are busy growing babies. These prickly, pimply, itchy, red patches of skin most commonly appear in the crease between and beneath the breasts, in the crease where the bulge of the lower abdomen rubs against the top of the pubic area, and on the inner thighs.
What causes Heat Rash in Pregnancy
Heat rash is caused by the combination of pregnancy side-effects: your already overheated body, dampness from excessive perspiration , and the friction of skin rubbing against itself or clothing (as it tends to do when there’s more skin to rub). While it’s not pretty, fortunately prickly heat is usually only slightly irritating.
What you can do about it
Keep cool. Wear light, loose-fitting cotton clothes. Soothe with a cool, damp compress. It can take some of the heat out of your heat rash.
Rinse off. Take warm (not hot) baths and showers — and don’t linger for too long. A tepid oatmeal bath can be very soothing.
Pat on powder. Sprinkle a bit of cornstarch or talc-free powder in heat-sensitive areas to absorb moisture during the day.
Smear on some calamine. A dab of calamine lotion can also be soothing (temporarily,anyway) and is safe to use.
Avoid irritants. Stay away from perfumes, fragranced lotions, and harsh soaps. Avoid petroleum or mineral oil creams. These products can further block your pores.
Get naked. And stay that way whenever you can. Fresh air is the best antidote to prickly heat. If any rash or irritation lasts longer than a couple of days, ask your practitioner about next steps.
What solutions are off-limits
There are plenty of over-the-counter remedies for heat rash (you’ll notice that many contain hydrocortisone, a common anti-itch ingredient) — but before you apply or ingest any medication, check with your dermatologist or pharmacist to make sure it’s safe to use during pregnancy.