Spironolactone and melasma - Will this exacerbate my melasma?

Skin discoloration is a very prevalent problem in women over the age of twenty.  It is also increasingly common in men with increased sun exposure, but mainly occurs in women. 
Risk factors include thyroid disease, sun exposure, hormones, pregnancy, family history, PIH, and birth control. Melarase AM and Melarase PM have been extremely effective in reducing pigmentation associated with skin discoloration and hyperstimulation of melanocytes. 
In my practice, patients with hyperpigmentation benefit from twice daily application of the creams. Melarase AM in the morning, followed by Melarase PM in the evening. Melarase AM contains four active sunblocks, so additional sunscreen is not needed unless your sun exposure is very high or you had a recent procedure/laser. SPF of 30. Melarase PM contains active skin lighteners to even out skin pigmentation. If you are concerned about the development of pigmentation, contact our office to discuss details and to obtain a regimen for Melarase. 
Laser therapy works but must be combined with a therapeutic topical program before and after therapy. 
Recommendations:  5-step Daily Brightening Kit has everything you need to improve dark spots, skin discoloration, melasma, and hyperpigmentation caused by sun exposure, hormones, scarring, and the environment. It’s a powerful daily brightening kit that can help bring out your skin’s natural, healthy glow. Ideal for use on the face, neck, and hands. 
Includes: Melaclenz, Melapads, Melarase AM, Melarase PM, Elevase, and Spectrase
Best, 
Dr. Karamanoukian
#Realself100 Surgeon

first off, you do not have to be on birth control when being on isotretinoin. second off, isotretinion can worsen melasma as can spironoactone.  I suggest you see a meslasma expert.  Likely there is nothing you can do but take the acne medications but do your best for the melasma at the same time with sun protection, lasers, mcironeedling and skin care.

Spironolactone can exacerbate melasma. Melasma needs long term commitment with skin care and avoidance of skin factors such as sun exposure (Spectrase Sun Block) which has wide UV spectrum and SPF 30+ protection. 
Daily good habits with topicals may well help you chieve your goals with a good skin system like the Brightening Kit from KareSkin (see link). You may want to start with Melarase and Pigmentation Correction Complex. Scler-X from another vendor is for PIH relief (see link). 
Melarase AM is non hydroquinone based. 
Clear + Brilliant laser can be added once you start your pretreatment with topicals. 
Best
H Karamanoukian MD FACS