I suffer from Hidradenitis suppurativa & have severe scaring & dark inner thighs will a chemical peel help?

Hidradenitis suppurativa is a chronic disease. Chronic infection and inflammation can cause scarring and darker discolouration. 
The treatment needs to be well control by antibiotic and better to get a consultation from a dermatologist . I would advise treating the root cause before any chemical peel aesthetic procedure. 
If the cause of the chronic HS is due to hair, Laser hair removal will solve the issue. 
Good luck

H.S. is a chronic disease with intermittent flares, continuously adding to the scaring and discoloration. I strongly suggest to see a board certified dermatologist to get the H.S. under control first. Otherwise you will be wasting money on combinations of lasers, chemical peels and topical creams (all which can make an improvement in texture and one of skin). Think of it as putting out the fire before you rebuild the house.  

Thank you for your question,Chemical peels are very effective when addressing pigmentation as are laser treatments. These can be used in combination and typically require a series of treatments. You should always consult with a board certified doctor before starting any treatment program to determine the most appropriate regimen for your skin.