\u201cIt\u2019s a trial-and-error process every day,\u201d says Arceo, who tests new products one at a time. \u201cI just accept living with allergies and address skin concerns<\/a> through other products.\u201d <\/p>\n\n\n\n The allergic reaction hasn\u2019t kept her indoors, though. She plays multiple sports and stays active, focusing on keeping her skin comfortable and supporting her skin barrier. After a long day out, she reaches for a hydrating and soothing cream that, she says, helps her skin barrier<\/a> bounce back.<\/p>\n\n\n\n Arceo\u2019s experience isn\u2019t one that board-certified dermatologist and fellow of the Philippine Dermatological Society, Gaile Robredo-Vitas, MD<\/a>, encounters often. What she sees is irritation, usually from skin care actives like exfoliants and retinoids, and the two can look identical. <\/p>\n\n\n\n In this edition of Ask Allure<\/em>, Dr. Robredo-Vitas helps us understand how a sunscreen<\/a> allergy works, how to tell the difference between irritation and allergy, and what to do. <\/p>\n\n\n\n The difference comes down to timing and cause. Irritant contact dermatitis is direct damage to the skin, and it can affect anyone with enough exposure. It also tends to show up within minutes to a few hours through symptoms like burning, stinging, or soreness, and stays in the same area where the product touched. <\/p>\n\n\n\n Allergic contact dermatitis, on the other hand, is an immune response to a specific ingredient to which the skin has become sensitized. Symptoms are typically delayed, appearing 24 to 72 hours later with intense itching and blistering, and they can spread beyond the area of exposure. <\/p>\n\n\n\n Because these two sometimes overlap, Dr. Robredo-Vitas usually starts by taking in her patients\u2019 history: what they used, when the adverse reactions started, and where the rash appeared. <\/p>\n\n\n\n \u201cThese give us clues. But because irritation and allergy can sometimes look similar, in cases where both are possible, patch testing may be needed to correctly identify the trigger,\u201d shares Dr. Robredo-Vitas. \u201cBurning, stinging, or redness alone doesn\u2019t establish an allergy.\u201d<\/p>\n\n\n\n Envato Images<\/p>\n<\/span>\n\n <\/div>\n \n<\/div>\n\n\n\n\n Published studies<\/a> have flagged certain chemical UV filters, including oxybenzone, octocrylene, and avobenzone, as potential allergens. Meanwhile, mineral filters<\/a> like zinc oxide and titanium dioxide are more generally tolerated. But Dr. Robredo-Vitas says that fragrance, preservatives, and other ingredients in either SPF formula can still cause a reaction. <\/p>\n\n\n\n \u201cWe cannot really identify the culprit from the brand name, SPF number, or \u2018chemical versus mineral\u2019 label alone,\u201d she explains. \u201cThis is why reviewing the entire skincare routine matters, rather than immediately blaming one product or ingredient.\u201d<\/p>\n\n\n\n If a product burns, itches, or stings, Dr. Robredo-Vitas says to stop using it immediately. Next, wash off the product with a mild and gentle cleanser without scrubbing. Then, finish it off with a basic moisturizer or barrier cream that your skin tolerates to soothe the area. <\/p>\n\n\n\n She also recommends taking note of the product your skin reacted to and its ingredient list. \u201cTake photos of the rash while it\u2019s visible,\u201d she says. \u201cIt also helps to remember whether you\u2019ve had similar reactions to other products, because there may be an ingredient they have in common.\u201d<\/p>\n\n\n\n If it persists, worsens, or keeps coming back, see a board-certified dermatologist\u2014most especially if the reaction is on the face. <\/p>\n\n\n\n Pexels<\/p>\n<\/span>\n\n <\/div>\n \n<\/div>\n\n\n\n\n For anyone who can\u2019t tolerate topical sunscreen like Arceo, Dr. Robredo-Vitas recommends finding alternatives<\/a>. \u201cYou can protect your skin with UPF clothing, a wide-brimmed hat, UV-protective sunglasses, and an umbrella,\u201d she says. Seeking shade and getting less direct sun exposure around midday also helps, she adds.<\/p>\n\n\n\n Once the skin settles, she also recommends consulting a dermatologist to help you find other sunscreens<\/a> that avoid your identified triggers, like a basic mineral sunscreen with a broad-spectrum protection of SPF 30 or higher. \u201cKeep in mind that having fewer ingredients doesn\u2019t automatically guarantee that a product will be suitable for you,\u201d she nevertheless cautions. <\/p>\n\n\n\n Dermatologists like Dr. Robredo-Vitas may also recommend patch-testing any product on a small area before applying it to the face or neck. \u201cThis helps assess tolerance, but it doesn\u2019t rule out allergy,\u201d she says. \u201cFor recurring reactions where allergy is suspected, formal patch testing can help identify the trigger. If sunlight appears to play a role, photopatch testing may be needed.\u201d<\/p>\n\n\n\n It\u2019s important to note that your dermatologist\u2019s advice may differ depending on your skin\u2019s reaction. Arceo\u2019s case is one of these instances where using mineral sunscreen isn\u2019t advisable. Her dermatologist cautioned her against using it since she was young. \u201cIt was advised not to try too many different brands at my age at the time,\u201d she shares. \u201cMineral sunscreens immediately gave me rashes.\u201d <\/p>\n\n\n\n Philippine heat and humidity can make irritated skin feel worse, and so can the friction of rubbing a product in. \u201cThat doesn\u2019t mean you\u2019ve developed an allergy,\u201d says Dr. Robredo-Vitas. <\/p>\n\n\n\n \u201cMy practical advice would be to gently blot sweat, let the skin dry, and apply a tolerated sunscreen without vigorous rubbing.\u201d <\/p>\n\n\n\n Reapplication still matters. The general rule, according to Jasmin Jamora, MD, FPDS, President of the Philippine Dermatological Society, in a previous article<\/a>, is this: 30 minutes before you go out, reapply every two hours, and if you swim<\/a>, once every hour. But if a particular product is causing irritation and rashes, stop using it immediately and rely on protective clothing and shade instead.<\/p>\n\n\n\n For people like Arceo, this routine keeps things simple. So does this rule: one new product at a time, and no pressure to fix everything at once. <\/p>\n\n\n\n Dr. Robredo-Vitas\u2019s advice for the rest of us isn\u2019t too far off, either. Stop using the product, calm the skin, and don\u2019t let one bad reaction immediately tell you that you\u2019re allergic to everything. <\/p>\n\n\n\n \u201cSkin care is a lifelong journey, and having an allergy doesn\u2019t discourage me from trying,\u201d says Arceo. \u201cIf anything, I\u2019m looking forward to finding a solution.\u201d<\/p>\n\n\n\nIs it really an allergy?<\/strong><\/h2>\n\n\n\n
It may not be the filter after all<\/strong><\/h2>\n\n\n\n \n\n
![\"\"](\"https:\/\/assets.allure.ph\/wp-content\/uploads\/2026\/09\/woman-applies-sunscreen-at-the-beach-on-sunny-day-2026-09-24-16-25-20-utc-120x180.webp)
\n\n <\/picture>\n\n <\/figure>\n\n <\/div>\n\n What to do first<\/strong><\/h2>\n\n\n\n
Sun protection without the SPF<\/strong><\/h2>\n\n\n\n \n\n
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\n\n <\/picture>\n\n <\/figure>\n\n <\/div>\n\n Heat, sweat, and SPF reapplication<\/strong><\/h2>\n\n\n\n