How to Handle Allergic Reactions During a Lash Appointment

Allergic reactions during lash appointments are every lash artist’s worst nightmare. While they’re not common, they do happen—and how you handle the situation can make or break your client’s experience (and your reputation).

Whether you’re a seasoned artist or just getting started, having a plan in place is crucial. In this guide, we’ll walk you through what to do if a client has an allergic reaction during or after their lash appointment—and how to minimize the risk in the first place.

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1. Recognize the Signs Early

Reactions can happen during or after the appointment. It’s important to know what to look for:

Common signs of a lash allergy:

• Redness or puffiness of the eyelids
• Itching or burning sensation
• Watery eyes or tightness
• Swelling that worsens over 24-48 hours
• Irritation that doesn’t go away within a few hours post-appointment

Note: These are different from chemical burns (caused by improper eye pad placement or glue fumes), which are localized and show up immediately.

2. Stay Calm and Reassuring

If your client starts experiencing discomfort during the appointment, pause and assess. Panicking only makes the situation worse.

• Ask them specific questions: "Is it stinging or itchy?" "Is there pain or just discomfort?"
• Be transparent but comforting: “It’s rare, but it’s possible you’re experiencing a mild allergic reaction. Let’s take care of this right away.”

3. Remove the Lashes Safely

If you suspect a true allergic reaction, remove the lashes immediately:

• Use a gel or cream remover and work quickly but gently.
• Avoid anything that may further irritate the eyes—no steam, no strong lighting, and no rubbing.
• Ask your client to keep their eyes closed and breathe normally.

4. Refer to a Medical Professional

You are a lash artist, not a doctor. If swelling is significant, if there’s pain or vision changes, or if symptoms worsen within hours, advise your client to seek medical attention.

Never suggest medications, even over-the-counter ones like Benadryl. It's better (and safer) to say:

“Everyone reacts differently, and it’s best to have a medical professional take a look to ensure you're okay.”

5. Document the Incident

For your own records and liability, document:

• What happened (with timestamps)
• What actions you took
• Client’s response
• Any photos (with their permission)

Also, consider updating your waiver to include allergy-related language, if it doesn’t already.

6. Prevent Future Reactions

The best way to handle reactions? Prevent them from happening.

• Use high-quality, medical-grade products
• Work in a well-ventilated space
• Always patch test if a client has a history of sensitivities
• Consider switching to a UV lash system which can dramatically reduce exposure to fumes

Want to Master Lash Allergy Prevention?

Lash allergies are more common than you think—and most are avoidable with the right knowledge.

🎓 Take our Ultimate Lash Allergy Course to:

• Identify and manage lash allergies with confidence
• Learn when to patch test and when not to
• Understand the difference between irritation, allergy, and chemical burn
• Protect your clients and your business

Final Thoughts

An allergic reaction isn’t the end of the world—but how you respond matters. Stay calm, act quickly, and be prepared. Your clients will thank you, and you’ll feel more confident every time someone walks through your door.