Bed bug bites usually heal on their own within one to two weeks, but the itching can be intense enough to disrupt your sleep and daily life. The best thing to put on them is a hydrocortisone cream to reduce inflammation, combined with thorough cleaning to prevent infection. Beyond that, you have several options depending on how severe your reaction is.
Clean the Bites First
Before applying anything, wash the bites with mild soap and water. This removes bacteria from the skin surface and lowers your risk of infection from scratching. Pat the area dry gently rather than rubbing, since the skin around the bites is already irritated. If you have antiseptic soap available, that’s a good option, but regular soap works fine for most people.
Hydrocortisone Cream for Inflammation
A hydrocortisone cream is the most widely recommended topical treatment for bed bug bites. It works by calming the immune response in your skin, which is what causes the redness, swelling, and itching in the first place. You can find 1% hydrocortisone cream over the counter at any pharmacy. Apply a thin layer directly to each bite and let it absorb. For more severe or widespread reactions, the CDC notes that stronger prescription steroid creams may be helpful.
Hydrocortisone is most effective when you start using it early, before you’ve scratched the bites open. Once the skin is broken, you’ll want to switch to an antibiotic ointment instead to prevent infection.
Calamine Lotion for Itch Relief
Calamine lotion is another solid option, especially if you prefer something without steroids. Its active ingredients, zinc oxide and iron oxide, create a cooling sensation on the skin that dulls the itch. It also dries out any oozing or weeping that can develop around irritated bites. The lotion leaves a visible pink residue on the skin, so it’s best suited for use at home or before bed. Apply it directly to each bite and let it air dry.
Cold Compresses for Quick Relief
If you need immediate relief and don’t have cream on hand, a cold compress works surprisingly well. Wrap ice or a bag of frozen vegetables in a cloth and hold it against the bites for 10 to 15 minutes. The cold numbs the nerve endings in your skin and reduces swelling. This won’t treat the underlying inflammation, but it can break the itch-scratch cycle long enough for you to fall asleep or get through a workday.
Antihistamines for Widespread Itching
When the itching is too intense or too spread out for creams to handle, an oral antihistamine can provide relief from the inside out. These medications block the histamine your body releases in response to the bites, which is the chemical responsible for itching and swelling.
You have two main categories to choose from. Older antihistamines like diphenhydramine (Benadryl) are effective but cause drowsiness, which can actually be useful if the itching is keeping you up at night. Newer options like cetirizine (Zyrtec) or loratadine (Claritin) control itching without significant sedation, making them better for daytime use. You can use an oral antihistamine alongside a topical cream for more complete relief.
What Not to Put on Bed Bug Bites
Avoid applying rubbing alcohol, hydrogen peroxide, or undiluted essential oils directly to bites. These can irritate already inflamed skin and slow healing. Toothpaste is another popular home remedy that’s more likely to cause irritation than relief. Stick with products designed for skin inflammation.
The most important thing you can do is resist scratching, even when the urge is overwhelming. Scratching breaks the skin and introduces bacteria, which can lead to a secondary infection. Keeping your nails short and applying treatment before bed (when scratching tends to happen unconsciously) helps protect the bites while they heal.
Signs a Bite Needs More Attention
Most bed bug bites resolve without complications, but scratching can sometimes lead to infection. Watch for increasing redness that spreads beyond the original bite, warmth or tenderness around the area, pus or cloudy fluid draining from the bite, or swelling that gets worse rather than better over several days. These signs suggest bacteria have entered through broken skin, and you may need a topical or oral antibiotic.
In rare cases, people develop a more significant allergic reaction to bed bug bites, with hives or swelling that extends well beyond the bite sites. If you notice widespread hives, difficulty breathing, or swelling of the face or throat, that’s a medical emergency requiring immediate care.