Sorry to hear about your struggles. The unfortunate truth about discolorations is that they take a while to fade. There are a few things you can do to speed up the process, but it will still take some time. Definitely do not use lemon juice. This is highly acidic and will trigger irritation and actually slow down the healing process. Regular use of an exfoliator with salicylic acid can help to speed up the healing time by exfoliating the surface layers of the skin and it will also prevent ingrown hairs. Salicylic acid is also an anti-irritant. Look for a product with with antioxidants like Vitamin C, Vitamin A, and Niacinamide aka Vitamin B3, these ingredients help to strengthen the skin and can help fade discolorations. You can also look for a product with the active skin lightening ingredient hydroquinone, but this is a stronger ingredient so if you do decide to use it, test it on a small patch of skin first. If youíre dealing with a lot of discoloration that have been in place for a long period of time, say over 14 months, consider getting a prescription of Retin-A which is a stronger form of vitamin a that works quickly. Iím not familiar with the bump stopper product.
To prevent razor bumps be sure to use quality products that are fragrance free and free from common irritants found in menís products. Things like menthol, eucalyptus, sage, lavender, and citruses are irritants you should steer clear of. Use salicylic acid regularly. Also try shaving with fewer blades. More blades do not equal a better shave. I really like the Gillette Excel with 2 blades.
Hope these tips help.