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If you cannot find any spirit gum, try another type of cosmetic adhesive meant for gluing on lace-front wigs, mustaches, and beards. For example, the Telesis 5 silicone matte lace adhesive is designed for use with skin and lace-backed cosmetic items. Try to get something high quality. It may be more expensive, but a cheaper product may irritate your skin. If you have not used spirit gum before, or have sensitive skin, consider doing a patch test on your inner elbow or wrist to see whether or nor you are allergic to the spirit gum. If you are allergic, consider using wig tape instead. Place the merkin in your genital area to approximate its proper placement. Draw a guideline with an eyeliner if you do not feel you will be able to apply the glue in the right area. Once you apply the spirit gum, it will be tricky to remove it. Flip the merkin over so that the mesh side is facing you. Twist the cap off the spirit gum, and use the brush to trace the perimeter of the merkin. Most bottles of spirit gum will have a brush attached to the cap, like nail polish. If yours did not come with a brush, use popsicle stick or a clean brush with short, stiff bristles instead. Position it just above the pubic mound, where the majority of your pubic hair would be. If you need to make any adjustments, do so now. Start smoothing the merkin from the center and move to the edges. Don't worry if the merkin starts to slip; it's simply because the spirit gum has not finished setting. Simply hold the merkin in place until it stays still. It should only take a few seconds for it to finish setting. Avoid scrubbing the merkin itself. Spirit gum is typically waterproof and can last a few showers. Remember, this is not a permanent accessory, so you will need to remove it after day or two. Do not wear it for more than 3 to 4 days. Merkins are reusable. If you'd like to wear your merkin more often, take it off, clean it, and reapply it using the same method listed above. You can also secure it using some wig tape instead.
Buy some spirit gum online or from a costume shop. Stand in front of a mirror, naked, and figure out where to place the merkin. Apply the glue to the back, perimeter of the merkin and wait about 20 seconds for it to get tacky. Place the merkin, glue side down, onto your skin. Smooth the merkin down onto your skin, and hold it in place until the spirit gum sets. Wear your merkin, and wash your body as usual if you want to wear for 3 to 4 days.