Better choices. Chlorpromazine (thorazine) was used primarily as an anti-psychotic. In some countries it's still used for severe itching, but many anticholinergic side effects limit its use. Otc Benadryl (diphenhydramine) (oral or topical) or zyrtec are both good. H2 antagonists like zantac/axid/ Pepcid also work because they act on a different receptor than benadryl/zyrtec. Topical steroids can soothe itching.
Yes. Yes but they are very strong for a simple itch.
I have itchy skin rashes over my thighs, legs, arms, and elbows, ever since I took paracetamol-codeine tablets. What can I use for this intense itch?
Allergy. Sound like a reaction to the medication. Itching can usually be helped with Benadryl (diphenhydramine) otc. Just follow the directions on the package. You should also call the doc who gave you the medicine to let them know your symptoms.
Anti-pruritics. There are many ingredients in anti-itch creams including menthol, phenol, oatmeal, pramoxine, benedryl and hydrocortisone.
Creams and pills. You can also consider taking an antihistamine depending on the cause of the itchy skin. Some to consider are benadryl (diphenhydramine) (but this can make you sleepy) or zyrtec instead of claritin. They are all over the counter. Itchy skin may also be due to dryness so try keeping your skin well moisturized as well.
Moisturizing. Most itchy skin is caused by dry skin. Moisturizing on a consistent basis and especially after showering can be helpful.
Dry skin. Is the most common cause of itchy skin. Start with a thick moisturizer like aquaphor, or soy based moisturizers, if you are not better in 6 weeks see Derm for work up of chronic pruritus.
Xerosis. Often pertains to skin that is dry and needs a topical moisturizer.
Itching. Olmetic can cause hives which in turn can cause itchy skin.
Dryness? Difficult to answer without exam. But likely dry skin, and best addressed by changing to gentle cleansers and a good moisturizer. If not improved after a week see a derm.
Options. Try otc Hydrocortisone cream 2x a day x 1 week. Also, take antihistamine. If nothing works, see your doctor.