Did you skimp on the sunscreen or forget it altogether? Within a few hours, you’ll be experiencing the pain, redness, swelling, and even blistering of a classic sunburn. If you’re especially unlucky, you may also suffer headache, fever, and nausea. Fighting this summer bummer can begin with a cool bath or shower or by applying a clean towel dampened with cool tap water.

Whatever you do, don’t break those small blisters (the ones no bigger than your little fingernail). If they do break ...

Treating your suffering skin with moisturizer, aloe vera lotion or gel, or a low-dose hydrocortisone cream may also offer some relief. Whatever you do, don’t break those small blisters (the ones no bigger than your little fingernail). If they do break, gently clean the area with mild soap and water, apply an antibiotic ointment, and cover it with a nonstick gauze bandage. If pain persists, you can take an over-the-counter pain reliever such as ibuprofen (Advil, Motrin IB, others), naproxen sodium (Aleve), or acetaminophen (Tylenol, others). And if you get large blisters, see a doctor: Large blisters are best removed, as they rarely will remain intact on their own.

Pain and redness can be treated at home, but if you’re suffering complications such as extreme pain, headache, confusion, nausea, or chills, seek medical help. Want to avoid these problems in the first place? Use plenty of sunscreen, and keep out of the sun between 10am and 2pm, when those solar rays are most damaging.