Safety
Allergies and reactions
A reaction is information. Working out which of five products caused it is a process of elimination rather than guesswork.
Two different things get called an allergy. A true allergic reaction involves the immune system and can appear quickly and severely. Irritant contact dermatitis is far more common: a chemical irritates skin directly, in proportion to concentration and contact time, with no immune involvement at all. Both produce redness, itching and soreness, and the practical response is similar.
The usual culprits
- Latex
- A genuine allergy in a small percentage of people, sometimes severe. Polyurethane and polyisoprene condoms exist precisely for this, and gloves are available in nitrile.
- Fragrance
- The most common cause of contact reactions on any part of the body, and entirely avoidable in this category.
- Preservatives
- Present in every water based formula. Some people react to one family and not another, which is why comparing ingredient lists is worthwhile.
- Glycerine and propylene glycol
- Irritants at higher concentrations, and associated with thrush recurrence in people already prone to it.
- Nickel
- In cheap plated hardware on harnesses and jewellery. A green mark on skin is a strong clue.
- Detergent residue
- Frequently blamed on the garment rather than the wash. Fragranced detergent and fabric softener are the usual sources.
Narrowing it down
- Stop everything in the area for a week, including washes, wipes and scented laundry products.
- Reintroduce one product at a time, with several days between each.
- Keep a short written record, since memory is unreliable at this level of detail.
- Compare the ingredient lists of anything that produced a reaction.
Reducing exposure generally
Shorter ingredient lists mean fewer suspects. Unscented products, plain cotton, detergent without perfume and no fabric softener remove most of the common causes before any investigation begins. For anyone with an existing skin condition affecting the area, that baseline is worth adopting permanently rather than only during a flare.
Persistent symptoms with no identifiable trigger deserve a clinician rather than another product change, since several conditions present as a reaction and none of them resolve by switching brand.
Condom alternatives
Polyisoprene condoms are the closest substitute for latex in feel and are made without the proteins responsible for a latex allergy. Polyurethane is thinner, transmits heat well and is compatible with more lubricants, although it stretches less and is more prone to slipping. Both are widely stocked and neither requires a prescription.
Reactions to metal deserve one more note. Surgical stainless steel and titanium are the usual safe choices, while plated hardware on cheaper harnesses and jewellery is the common source of nickel exposure. Where plating has worn through to a different colour underneath, that is the point at which reactions usually begin.