Looking sick with makeup can be a fun and creative way to experiment with your makeup skills or even deceive others for a well-planned prank! Here are 15 steps to help you look under-the-weather by using makeup.

1. Cleanse your face: Always begin with a clean canvas by gently washing your face.

2. Moisturize: Apply a light moisturizer to keep your skin hydrated and create a smooth base for makeup.

3. Apply foundation: Apply a lighter shade of foundation than your natural skin tone for a pale, sickly appearance.

4. Darken under-eyes: Using a matte mauve or soft brown eyeshadow, gently apply under the eyes, blending outwards to create natural-looking dark circles.

5. Accentuate eye bags: To emphasize eye bags, apply the same eyeshadow on the crease just beneath the bag and blend outwards.

6. Pale eyelids: Apply a lackluster beige eyeshadow to your eyelids for tired-looking eyes.

7. Subtle redness: Use a slightly red-toned cream blush and lightly apply it to the inner corners of your eyes and around your nostrils.

8. Redden the nose: Gently apply more red cream blush or lipstick on the tip of your nose for an irritated look.

9. Dull lips: Dab concealer lightly on your lips to give them a pale, dry appearance.

10. Add a feverish glow: Use a warm-toned highlighter or bronzer on your forehead, cheeks, and chin for that fever-induced flush.

11. Create veins: Use a green eyeliner (or mix green and blue) to draw fine veins on the sides of your temples and below the eyes; blend well for subtlety.

12. Enhance shadows: With matte gray or taupe eyeshadow, enhance the natural shadows of your face – like the hollows of your cheeks or sides of your nose.

13. Emphasize exhaustion: Use a brown eyeshadow to create a tired furrow between your eyebrows and intensify other lines on your face.

14. Messy hair: To complete the look, tease your hair or style it into an unkempt bun.

15. Optional symptoms: You can add more effects, such as faux sweat (using gel or oil) or tissue residue on your nostrils (using white powder).

Now you know how to look convincingly sick with makeup! Remember, this should be used for entertainment purposes only and not to deceive others maliciously. Have fun experimenting with this engaging new makeup challenge!