Solutions for acne

Avoid dairy products for a trial period
Some people are allergic or intolerant to milk. Also, milk promotes a hormone called IGF-I (insulin-like growth factor) in all of us and possibly, oestrogens.
IGF-I levels peak in teenage years and oestrogen dominance is also a common cause of acne in adult females.
A diet high in meat and milk can contribute to oestrogen dominance in both men and women, leading to acne.
Best do a trial period avoiding dairy products about 2 weeks, as well as reducing meat to help identify if milk and meat are contributing factors. Only a total avoidance can produce a result if you are allergic.

Cut back on sugar
High sugar and high glycemic load are strongly linked to bad skin. Too much sugar or fast-releasing carbohydrates in white bread, cereals, white rice, pastries, sweets and sugared drinks, as well as too much fruit juice, creates spikes in your blood sugar levels.This, in turn, causes the release of the hormone insulin, which promotes sebum production. The increased circulating sugar can also feed infections in the skin.
Cut right back on sugar and always choose foods such as wholegrain pasta or brown rice instead of white.

Increase your intake of zinc
The need for zinc is especially high during teenage years, because it is involved in growth and sexual maturation, but most people only consume about half of the basic amount needed of 15mg a day.
Topical treatments with zinc have been proven to be effective on acne.
Zinc, combined with vitamin C, is an antimicrobial agent that helps to kill infections in the skin.

Use vitamin A and C based skin creams
Among the most commonly prescribed treatments for acne are retinoids, which are vitamin A like drugs. Retinoids are often given in a capsule form, one of the most commonly prescribed is isotretinoin, but also very common in gels and creams. Considerably more toxic than natural vitamin A, there is a need for caution when using it, specially in pregnancy.
The natural alternative is to use creams that contain natural retinol, which comes in various forms, such as retinyl palmitate and retinyl acetate, that can penetrate the skin. These are highly effective. Some skin.care products also contain vitamin C as ascorbyl palmitate. These are extremely effective.
Vitamin A creams also help to prevent flaky skin blocking the drainage of sebum.
As vitamin A creams when too concentrated can irritate the skin, best is to increase the amount of vitamin A gradually.

Best foods
Vegetables (raw or steamed), fruit (berries, cherries, plums, apples, pears), fish, raw nuts and seeds, beans and lentils, water (at least 8 glasses a day)

Worst foods
Sugar, refined "white" foods, high fat foods (meat, cheese, processed and fried food), milk and any dairy products and meat.