Red rash on the inner thigh and abdomen without itching

Red rashes on the inner thigh or abdomen that are not itchy may be caused by vitamin deficiency, contact dermatitis, drug eruptions, or other reasons. Treatment should be based on the specific condition. Details are as follows:

1. Vitamin Deficiency

Imbalanced nutrition and insufficient intake of vegetables and fruits in daily diet may lead to inadequate vitamin levels in the body, resulting in rough, dry skin or even red rashes. Under medical guidance, treatment may include vitamin D drops or B-complex vitamin tablets.

2. Contact Dermatitis

This is usually a skin condition triggered by exposure to external substances such as pollen or dust. Under inflammatory stimulation, symptoms such as redness and swelling may occur. Treatment under a doctor's direction may include topical application of compound acetic acid dexamethasone cream or oral administration of methylprednisolone tablets.

3. Drug Eruption

This is typically an adverse or allergic reaction caused by medications, characterized by round-shaped red rashes without itching. Under medical supervision, treatment may involve topical application of hydrocortisone butyrate cream, mometasone furoate cream, or betamethasone cream.

In addition to the above causes, similar rashes could also result from conditions such as allergic purpura, syphilis rash, or cherry angiomas. It is important to adjust your diet and avoid consuming irritating foods.