A Study to Evaluate the Safety and Efficacy Imiquimod Cream, 2.5% in Participants With Actinic Keratoses

Exclusion Criteria

• •Participant is pregnant, lactating, or is planning to become pregnant during the study.
• •Participant has hyperkeratotic, hypertrophic or atypical AKs (for example, AK greater than \[\>\] 1 cm\^2 in size) in the treatment area.
• •Participant is currently enrolled in an investigational drug or device study.
• •Participant plans to be exposed to artificial tanning devices or excessive sunlight during the trial.
• •Participant is immunosuppressed (for example; human immunodeficiency virus \[HIV\], systemic malignancy, graft vs. host disease, etc.).
• •Participant has experienced an unsuccessful outcome from previous imiquimod therapy (an unsuccessful outcome is defined as after a reasonable therapeutic trial with no compliance issues and the topical drug do not work).
• •Participant has used an investigational drug or investigational device within 30 days prior to the Baseline visit.
• •Participant has had dermatologic procedures or surgeries such as: laser resurfacing, PUVA (Psoralen + ultraviolet A) therapy, UVB therapy, chemical peels or dermabrasion on the face or balding scalp within 6 months prior to the Baseline visit.
• •Participant has cryodestruction or chemodestruction, curettage, photodynamic therapy, surgical excision or other treatments for AK on the designated treatment area (face or scalp) within 1 month prior to the Baseline visit.
• •Participant has used oral corticosteroid therapy, interferon, cytotoxic drugs, immunomodulators, immunosuppressive therapies or retinoids within 1 month prior to the Baseline visit.
• •Participant has used topical medications; corticosteroids, alpha hydroxyl acids (for example; glycolic acid, lactic acid etc. \>5%), beta hydroxy acid (salicylic acid \>2%), urea \>5%, 5-fluorouracil, diclofenac, imiquimod, ingenol mebutate or prescription retinoids (for example; tazarotene, adapalene, tretinoin) to the face or balding scalp within one month prior to the Baseline visit.
• •Participant has used topical creams, lotions or gels of any kind to the selected treatment area within one day prior to the Baseline visit.
• •Participant has lesions suspicious for skin cancer (skin cancer not ruled out by biopsy) or untreated skin cancers within the selected treatment area (face or scalp).
• •Participant has a history of sensitivity to any of the ingredients in the test articles.
• •Participant has any skin pathology or condition (for example; facial/scalp psoriasis, atopic dermatitis, acne, rosacea, etc.) that, in the investigator's opinion, could interfere with the evaluation of the test article, worsen due to the treatment or requires the use of interfering topical, systemic or surgical therapy.
• •Participant has any condition which, in the investigator's opinion, would make it unsafe or precludes the participant's ability to fully participate in this research study.
• •Participant is known to be noncompliant or is unlikely to comply with the requirements of the study protocol (for example; due to alcoholism, drug dependency, mental incapacity) in the opinion of the investigator.