Sunscreen and diarrhea

This is a rare side effect. If you have a sunburn, your doctor will recommend that you apply moisturizer to prevent burning and itching.

There are a few different explanations for this side effect.

You’re dehydrated

Dehydration is a common side effect of taking this drug. Dehydration can make your skin look oily and cause the skin on your lips and around your nose to swell.

If you’re dehydrated, your doctor will likely recommend that you drink more water and apply moisturizer to your skin.

It’s also important to keep the burn moist, so that it doesn’t dry out and become more irritated.

You’re using too much vitamin C

You need to use this drug exactly as prescribed by your doctor. As a result, you may use more of it than your doctor prescribes.

If you use too much, it can cause your skin to look red and irritated.

If you notice any skin changes, talk to your doctor. They can work with you to figure out what’s causing them.

Sun damage

This drug is classified as a photosensitizer, which is a type of drug that can cause skin damage when you use it.

The reason for this is that it interacts with the cells in your skin. When it interacts with cellular DNA, it can cause damage to your skin.

This damage may make your skin look red and irritated.


This is a common side effect of this drug.

The rash is often mild and occurs on the cheeks. It may also appear on your nose or lips.

If the rash gets worse, your doctor may prescribe topical steroids.

If you have more severe or widespread rash, you may be diagnosed with a form of eczema.


Because this drug is a photosensitizer, it may cause itching.

Itching can be a side effect of all medications. When this happens, you’ll likely feel achy and irritated.

If you have a reaction to this drug, it’s important to let your doctor know. They can work with you to figure out why you’re experiencing itching.

How to use hydroquinone?

Hydroquinone is available as a cream, ointment, or solution. Follow the instructions that come with your medication to apply it to your skin.

You can use this medication daily or as directed by your doctor.

You shouldn’t apply it to large sections of your skin.

If you apply this drug to your skin, your doctor will likely tell you to wash your skin with lukewarm water after 24 hours. This will help to reduce the amount of the drug on your skin.

You may also need to use a barrier cream for a few days after your application.

If you have an open wound, your doctor may recommend that you apply the medication directly to the wound.

You’ll need to apply it for a period of time. This is often about three days.

If you have a skin condition that makes applying the medication difficult, your doctor may prescribe a topical steroid.

Hydroquinone side effects

Hydroquinone may cause mild or serious side effects.

The following list contains some of the key side effects that may occur with this medication.

Severe skin discoloration

This is one of the key side effects of hydroquinone.

It can cause your skin to look red, itchy, and irritated.

If you experience any of these side effects, you should contact your doctor right away.

If your skin looks red and irritated, your doctor may prescribe topical steroids.

If you take this medication and notice any other skin changes, talk to your doctor.

Hydroquinone can make your skin dry and irritated.

If you use this medication, you should wash your skin with lukewarm water after 24 hours. This will help to reduce the amount of the drug on your skin.

Hydroquinone should not be applied to any open wounds.

If your skin is irritated and weeping, contact your doctor.

The use of hydroquinone can increase your risk of developing skin cancer. If you have a skin condition, talk to your doctor before using this medication.

Hydroquinone warnings

Hydroquinone may cause skin irritation.

If you apply this medication to your skin, you may feel itchy, red, or irritated.

You shouldn’t use this medication if you’re pregnant.

Interactions with other drugs

Hydroquinone may interact with other medications. This can cause more side effects.

If you take a prescription or nonprescription medication, talk to your doctor before using hydroquinone.

If you’re taking a nonprescription medication, your doctor may recommend that you avoid hydroquinone.

Talk to your doctor before using hydroquinone if you take an anticonvulsant medication.

Interactions with foods or drinks

Hydroquinone may interact with some foods or beverages. This can cause more side effects.

If you eat certain foods or drinks with hydroquinone, it may increase the amount of hydroquinone in your body.

This may increase the risk of side effects.

Avoid the following foods or drinks while taking hydroquinone:

  • Water
  • Alcohol
  • Chocolate
  • Ice cream
  • Caffeine-containing products
  • Medicines containing sulfa drugs
  • Medicines containing antibiotics
  • Medicines that contain phenytoin
  • Medicines that contain carbamazepine

What is the dosage of hydroquinone?

The dosage of hydroquinone you need depends on the condition being treated.

The following information describes dosages that may be used. However, remember that your doctor has prescribed this medication for a reason.

For acne

  • Typical dosage: 1 to 4 grams per day.
  • Maximum dosage: 4 grams per day.

For rosacea

  • Typical dosage: 0.5 to 1 gram per day.
  • Maximum dosage: 1 gram per day.

For hyperpigmentation

Typical dosage: 5 to 15 milligrams per kilogram of body weight per day.

What to know about psoriasis?

Psoriasis is a common autoimmune disease. It causes red, thick, scaly patches of skin.

The patches can be itchy, painful, and inflamed. They’re also covered in silvery scales.

It’s not clear what causes psoriasis. Researchers think it’s an immune system reaction to something in the body. However, there’s no known cause.

The condition can be mild, moderate, or severe.

What are the causes of psoriasis?

The exact cause of psoriasis is unknown. It’s most likely an immune system response.

Experts believe that psoriasis may be caused by an overactive immune system. This means that the immune system overreacts to something in the body.

Some people may have a genetic predisposition to psoriasis.

However, no one’s been able to identify a single cause.

What are the symptoms of psoriasis?

Psoriasis is a skin condition. It causes patches of thick, scaly skin.

The takeaway

It’s important to use sunscreen, especially if you spend a lot of time outdoors.

You can also look for products containing vitamin D and vitamin UDA to help your skin produce collagen.

If you’re looking for a natural alternative, try using a product that contains rose water, lysine, or vitamin C.

Avoid products that contain alcohol, parabens, or other chemicals.

Images by Freepik

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