Vulvar irritation from intravaginal progesterone pessaries
Discontinuation of the offending intravaginal progesterone formulation and exclusion of other causes of vulvovaginal inflammation are recommended first. Vulvar contact or irritant dermatitis is managed with meticulous genital skin care, removal of ongoing exposures, and short-term topical anti-inflammatory therapy when clinically indicated.[1][2][3]
Immediate actions
- The progesterone pessary should be held temporarily and the prescribing clinician should be contacted for alternate progesterone delivery options.[2][3]
- The vulva should be cleansed only with water and without soaps or fragranced products, with gentle drying by patting rather than rubbing.[1][2]
- Vigorous cleansing products and other potential genital irritants or allergens should be identified and excluded.[1][2]
Diagnostic priorities during evaluation
- Vulvar exam should be used to assess for vulval eczema/contact dermatitis, candidiasis, and other causes of vulvovaginitis.[1][3]
- The differential diagnosis for vulval eczema should include candidiasis among other conditions.[1]
- Testing should be considered when infection is suspected based on symptoms and exam findings, since untreated infection can prolong inflammation.[2][3]
Skin-care regimen for irritant or contact dermatitis
- Meticulous genital skin care should be used as the cornerstone of vulval eczema management, including regular use of emollients and soap substitutes.[1]
- Patients should be advised to avoid abrasive materials used on genital skin and to minimize friction by choosing loose breathable cotton underwear.[1]
- Bland barrier protection may be used when moisture-related irritation is present.[1]
Anti-inflammatory therapy
- A short course of topical corticosteroid therapy should be used for significant inflammation or lichenification with follow-up and de-escalation to a milder regimen after improvement.[1]
- For very severe allergic contact dermatitis, a short course of oral corticosteroids may be used in addition to potent topical steroids, with specialist dermatology expertise and urgent referral recommended.[1]
- Topical calcineurin inhibitors may be used as alternative therapy, with stinging discomfort described as a potential adverse effect.[1]
Symptom-directed measures
- Cool compresses or a cool gel pack may be used to reduce vulval itch and discomfort.[1]
- A sedating antihistamine may be used when nocturnal itch is significant.[1]
When progesterone formulation changes are needed
- Ongoing exposure to suspected vulvar irritants or allergens should be excluded, and persistent symptoms should trigger assessment for ongoing exposure from the current progesterone product or delivery method.[1][3]
- If symptoms resolve after holding or changing the progesterone pessary and recur with re-challenge, an alternative progesterone formulation or route should be arranged through the prescribing clinician.[2][3]
Referral triggers and escalation
- Patch testing should be considered when allergic contact dermatitis is suspected to identify causative allergens.[1]
- Failure to respond to treatment or severe symptoms should prompt review to exclude ongoing irritant exposure and to assess for alternative diagnoses or neuropathic causes of persistent vulval symptoms.[1][3]
Targets and expected course
- Improvement is expected with appropriate vulvar care and treatment of the underlying cause of vulvitis or dermatitis.[2][3]
- Persistent or recurrent symptoms despite removal of irritants should prompt reassessment to identify the offending exposure or an alternate diagnosis.[1][2][3]