A Psoriasis is a common skin disease/disorder affecting approximately 2 per cent of the population across the globe. A strong genetic influence has been seen in majority of psoriasis sufferers.
Psoriasis is not an auto-immune disease. However, psoriasis is an immune-mediated skin disorder. It does not occur due to a weakness of immune system. It is also not related to gut malfunction.
Yes, changes in weather do have a certain degree of influence on activity/severity of psoriasis.
The skin lesions of psoriasis can be few in number or can be multiple and extensively involving most of the body, where it is called generalised psoriasis.
However, 20 per cent of the sufferers only have localised form of psoriasis, affecting either the scalp, knees, elbows or hand and feet (where it is called palmoplantar psoriasis), which is the case with you as well.
The treatment of hypertrophic palmoplantar psoriasis is extremely difficult. In this form, the lesions are mostly very itchy and the vigorous scratching by the sufferers significantly injures the affected skin areas which then invite bacteria, leading to secondary bacterial infections.
In these cases use of strong topical steroids without prescribing an oral antibiotic cover can lead to a dramatic worsening of the skin condition.
Similarly, the broken skin areas can also be an easy site of penetration for external irritants, like detergents of various forms, perfumes, after-shave lotions and even peeling or holding citrus fruits can also make the existing psoriasis worse by causing a superimposed irritant contact dermatitis.
Please visit an experienced dermatologist at the earliest who will formulate a suitable treatment plan and strategy to manage your psoriasis.